May 1998 - sg16-avd - lists.packetizer.com

Re: APC-1385
by Sakae OKUBO 31 May '98

31 May '98

Dear Mr. Roy, >I would appreciate if you would kindly put the power point siles in >the FTP site as well. The file has been placed at the /9806_Can directory as APC-1385ppt.zip. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp ***********************************************************

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Contribution APC1409 - Copy of Liaison from SG16 Q.11 & Q.15 to SG15 Q.4 e.g. ADSL
by Tom Geary 31 May '98

31 May '98

Dear members: The subject document has been uploaded to the PictureTel ftp site at AVC-site/incoming. Tom Geary

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Liaison from SG16/Q.11 & Q.15 to SG15/Q.4
by Tom Geary 31 May '98

31 May '98

Dear SG15/Q.4 experts: I have uploaded NF-087.doc to the SG15/Q.4 informal ftp site. This is the response from SG16 Q.11-15 to a liaison sent by SG15/Q.4 to SG16 during the February SG15 meeting.. I will bring 100 copies of this contribution to Nice. Tom Geary

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APC-1385
by Sakae OKUBO 30 May '98

30 May '98

Dear Mr. Roy, >>I am enclosing the APC-1385: Framework for H.323 Inter-Gatekeeper >>Communications (Text as well as VGs). I have placed your contribution as APC-1385.zip at the /9806_Can directory. If you wish your PowerPoint document be placed at the ftp site, please advise me or place it yourself at /Incoming directory of the PictureTel ftp site. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp ***********************************************************

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APC documents for the Cannes meeting
by Sakae OKUBO 30 May '98

30 May '98

Dear Jenn Yeh, Dear Kaynam Hedayat, >>Please assign a APC number for "Addition Administrative Domains >>in an H323 system proposal". I am working in MSAF (Multimedia >>Services Affiliate Forum". This proposal is represent MSAF view. APC-1407 has been allocated to your contribution. >>Please assign one APC number for the following PictureTel >>contribution. >>General comments on H.RDC. APC-1408 has been allocated to your contribution. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp *********************************************************** ----------------------------------------------------------------------- APC- Source Provisional title ----------------------------------------------------------------------- 1373 Editor Draft H.323 Annex E(Faster Connection Method) (D. Gurle) 1374 Editor Draft H.323 Annex F (Single Use Audio Terminal) (J. Ott) 1375 Editor Draft H.225.0 V3 (including Annex G Inter-Domain (G. Freundlich) Communications) 1376 Editor Draft H.450.4 (M. Korpi) 1377 Editor Draft H.450.5 (M. Korpi) 1378 Editor Draft H.450.6 (M. Korpi) 1379 Editor Draft H.245 V5 (M. Nilsson) 1380 Editor Draft H.MediaMIB (G. Kajos) 1381 Editor Draft H.246 Annex B and Discussion Topics (M. Reid) 1382 Nokia On the use of Multicast scope for gatekeeper discovery 1383 Nokia Efficient call setup in H.323 systems 1384 Nokia Comments on H.235 1385 AT&T Inter-GK requirements and architectures 1386 Korea Telecom Detailed architectures and procedures for dynamic multicast network 1387 Draft H.MediaMIB Annex 1 - RTP MIB 1388 Draft H.MediaMIB Annex 2 - H.323 MIB 1389 Draft H.MediaMIB Annex 2.1 Textual Conventions 1390 Draft H.MediaMIB Annex 2.2 H225 1391 Draft H.MediaMIB Annex 2.2.1 CallSignalling 1392 Draft H.MediaMIB Annex 2.2.2 RAS 1393 Draft H.MediaMIB Annex 2.4 Gatekeeper 1394 Draft H.MediaMIB Annex 2.5 Gateway 1395 Draft H.MediaMIB Annex 2.6 MC 1396 Draft H.MediaMIB Annex 2.7 MP 1397 Draft H.MediaMIB Annex 3 H320 1398 Draft H.MediaMIB Annex 3.1 Textual Conventions 1399 Draft H.MediaMIB Annex 3.2 Endpoint 1400 Draft H.MediaMIB Annex 3.3 CallSignalling 1401 Draft H.MediaMIB Annex 3.4 H.221 1402 Draft H.MediaMIB Annex 4 Common 1403 Draft H.MediaMIB Annex 4.1 H245 1404 Intel Support for out-of-band signalling in Gateways 1405 Intel Some requirements for UDP based Call Signalling 1406 Intel Discussion on Network Address Translation 1407 SUN Addition Administrative Domains in an H323 system Proposal 1408 PictureTel General comments on H.RDC -----------------------------------------------------------------------

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minutes of 5/27 ITU SNMP Audio Call
by George Kajos 29 May '98

29 May '98

Hi Folks, Below are the minutes of teh call from 5/27/98. Because we are preparing for the June 8-11 SG16 meeting, I won't try to schedule another one until after the meeting. Thanks, George Kajos VideoServer 63 Third Avenue Burlington, MA 01803 tel: (781) 505-2193 fax: (781) 505-2101 email: gkajos(a)videoserver.com SQ16 Q14 Multimedia Management Information Base Audio Call 5/27 Minutes Agenda 1. Review CallSignalling and H.245 proposals from Yokosuka 2. Discuss placement of RTP MIB 3. Review accumulated action items 4. Plan submissions for the Cannes Meeting June 8-11 5. Decide whether call is needed for 6/3/98 Attendees Mike Thatcher, Cisco Chris Grindel, PakNetX Zvi Mizrahy, Goldman?, IBM Haifa Joon Maeng, VTEL Bill Strahm, Intel Jim Hart, Kaynam Hedayat, James Pansarasa, Don Milotte, Picturetel Don Dewar, George Kajos, David Reich, Irina Suconick, Santo Wiryaman, VideoServer CallSignalling and H.245 proposals - There was no substantive input. After updating with H.323 textual conventions, will be resubmitted for Cannes meeting. RTP MIB placement - Rather than have it stand alone, as was suggested in Yokosuka, it was decided to propose bringing it under the Multimedia OID Tree. This will be done for APC-1380 in Cannes. Status of Action Items 1. George Kajos - Publish meeting minutes (this report) and schedule next conference. - This document. 2. George Kajos - Confer with ISO and IETF network management experts regarding placement of H.Multimedia MIB. - During the previous week, George discussed the status of the SG4 liaison with Gary Thom. Gary knows of no response yet. During the meeting the issue was discussed again. There is the concern that it isn*t possible to register SNMPv2 MIBs in an ISO tree. One issue, though not confirmed, is administrative authority. Another would be a perceived requirement that the MIBs be converted into a format appropriate for ISO CMIP management. There remains the strong desire to get feedback on this work from the IETF. Finally, it was mentioned a fallback plan would be to register the H.Multimedia MIB tree under an Enterprise number. Mark Baugher related this view to Steve Casner from the AVT working group. Steve felt that the work should be brought into the IETF. Pending result of June meeting, we will do this for the August IETF meeting. 3. Group - Research us of Global counters as they relate to usefulness in fault isolation and performance monitoring in network management applications - In an effort to compromise the number of counters in the RAS MIB was reduced to 29 counters stressing error conditions and the confirmations to rejections ratio. 4. Group - Admission table indices - Issue of index uniqueness waiting for example of a problem. 5. Group - Admission and CallSignalling Tables - Issue that there should be index correlation between the Admission Table and the CallSignalling MIB Call Table. However, there is no requirement that a direct call model gatekeeper support H.225 Q.931 making this somewhat difficult. The action item is on hold pending resolution. 6. Group - Registration and Zone Tables index correlation- It was pointed out that an indirect correlation exists and is sufficient. Unless there is further objection, this issue is closed. 7. Michael Thatcher - Send revised APC-1349 and textual conventions MIB to mailing list - done 8. Irina Suconick - update APC-1346, APC-1347, and APC-1348 to use textual conventions described in document sent to mailing list by Michael Thatcher - to be done for Cannes meeting. 9. Joon Maeng - H.320 MIB - to be done for Cannes meeting. 10. Zvi Mizrahy and a colleague - Gateway MIB proposal - to be done for the Cannes meeting. 11. Group - review H.225 CallSignalling and H.245 MIBs - to be updated and resubmitted to the Cannes meeting. Cannes Submissions Cisco - Gatekeeper and H.323 textual conventions VideoServer - H.Multimedia MIB, CallSignalling, RAS, H.245, and possibly H.320 MCU VTEL - H.320 Terminal, H.323 Terminal, IBM Haifa - H.323 Gateway Next Meeting - none planned

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Joint Interim Meeting of ITU-T SG16 Q.12, q.13, q.14
by Shin-Gak Kang 29 May '98

29 May '98

Dear Experts of ITU-T SG16, May I have the information on joint interim meeting of ITU-T SG16 Q.12, Q.13 and Q.14 which is planned at 9-12 June in France ? If anybody knows it, could you send me a meeting agenda and logistics/registration information for the meeting ? Best regards, -- ***************************************************** Shin-Gak Kang, Ph.D. ETRI Brussels Office Av. de Beaulieu 25, B-1160, Brussels, Belgium Tel: +32 2 660 2035 Fax: +32 2 660 7044 E-mail: sgkang(a)pec.etri.re.kr *****************************************************

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Upgrade to aVirt Gateway Server 3.0!
by info＠AVIRT.COM 28 May '98

28 May '98

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List of APC documents for the Cannes meetig
by Sakae OKUBO 28 May '98

28 May '98

Dear Q.12-14 colleagues, Attached please find the current document registration of the Cannes meeting reflecting the requests of Messrs. Kajos, Kumar nd Maeng. Please advise me if your contributions are missing. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp *********************************************************** Documents for the Cannes meeting (8-11 June 1998) ----------------------------------------------------------------------- APC- Source Provisional title ----------------------------------------------------------------------- 1373 Editor Draft H.323 Annex E(Faster Connection Method) (D. Gurle) 1374 Editor Draft H.323 Annex F (Single Use Audio Terminal) (J. Ott) 1375 Editor Draft H.225.0 V3 (including Annex G Inter-Domain (G. Freundlich) Communications) 1376 Editor Draft H.450.4 (M. Korpi) 1377 Editor Draft H.450.5 (M. Korpi) 1378 Editor Draft H.450.6 (M. Korpi) 1379 Editor Draft H.245 V5 (M. Nilsson) 1380 Editor Draft H.MediaMIB (G. Kajos) 1381 Editor Draft H.246 Annex B and Discussion Topics (M. Reid) 1382 Nokia On the use of Multicast scope for gatekeeper discovery 1383 Nokia Efficient call setup in H.323 systems 1384 Nokia Comments on H.235 1385 AT&T Inter-GK requirements and architectures 1386 Korea Telecom Detailed architectures and procedures for dynamic multicast network 1387 Draft H.MediaMIB Annex 1 - RTP MIB 1388 VTEL Draft H.MediaMIB Annex 2 - H.323 MIB 1389 Draft H.MediaMIB Annex 2.1 Textual Conventions 1390 Draft H.MediaMIB Annex 2.2 H225 1391 Draft H.MediaMIB Annex 2.2.1 CallSignalling 1392 Draft H.MediaMIB Annex 2.2.2 RAS 1393 Draft H.MediaMIB Annex 2.4 Gatekeeper 1394 Draft H.MediaMIB Annex 2.5 Gateway 1395 Draft H.MediaMIB Annex 2.6 MC 1396 Draft H.MediaMIB Annex 2.7 MP 1397 Draft H.MediaMIB Annex 3 H320 1398 VTEL Draft H.MediaMIB Annex 3.1 Textual Conventions 1399 VTEL Draft H.MediaMIB Annex 3.2 Endpoint 1400 VTEL Draft H.MediaMIB Annex 3.3 CallSignalling 1401 VTEL Draft H.MediaMIB Annex 3.4 H.221 1402 Draft H.MediaMIB Annex 4 Common 1403 Draft H.MediaMIB Annex 4.1 H245 1404 Intel Support for out-of-band signalling in Gateways 1405 Intel Some requirements for UDP based Call Signalling 1406 Intel Discussion on Network Address Translation -----------------------------------------------------------------------

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Re: APC numbers
by Sakae OKUBO 28 May '98

28 May '98

Dear Mr. Maeng, > I'd like to get five APV numbers for the meeting in > Cannes, > Tiles of my contributions are: > 1) Proposal for H.320 Terminal MIB, 2) Proposal for H.320 Textual > Convention MIB, 3) Proposal for H.320 Call Signaling MIB, 4) Proposal > for H.221 MIB and 5) Proposal for H.323 Terminal MIB. AS you see in a separate mail, Annexes of Draft H.MediaMIB will have separate APC numbers. I assume your contributions correspond to Mr. Kajos list as follows: 1) Proposal for H.320 Terminal MIB - Annex 3.2 Endpoit, or it may be Annex 3 H.320? 2) Proposal for H.320 Textual Convention MIB - Annex 3.1 3) Proposal for H.320 Call Signaling MIB - Annex 3.3 4) Proposal for H.221 MIB - Annex 3.4, though Mr. Kajos framework says RAS, perhaps this would be a typo. 5) Proposal for H.323 Terminal MIB - Annex 2? Please use the APC numbers in a separate list and advise me if my assumption is wrong. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp ***********************************************************

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Re: Please assign APC numbers
by Sakae OKUBO 28 May '98

28 May '98

Dear Mr. Kumar, > Please assign APC numbers for the following three contributions: > > 1. Support for out-of-band signalling in Gateways. > 2. Some requirements for UDP based Call Signalling. > 3. Discussion on Network Address Translation. APC-1404, 1405 and 1406 have been allocated, respectively as you see in a separate mail. > I am also the Editor of H.323 Annex D and H.332. White papers for both > of these drafts were submitted on schedule and both drafts are expected > to be Decided this September in Geneva. Do I need APC numbers for these > white papers for this meeting ? If yes, then please also assign them. Since it is inappropriate to discuss the white contributions for decision at the Rapporteur meeting, no APC numbers are assigned. They will be published as COM 16-nn documents. Let me confirm that they are h323annexDwhite.doc 512 Kb Sat May 9 01:33:00 1998 h332-white-final-dls.doc 171 Kb Thu Apr 23 16:54:00 1998 in the Incoming directory of the ftp site. They will soon be moved to 9809_Gen directory. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp ***********************************************************

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Draft H.MediaMIB
by Sakae OKUBO 28 May '98

28 May '98

Dear Mr. Kajos, For easier management of the Cannes meeting documentation, let us take the option 2. APC-1387 through 1403 have been reserved for the annexes as you see in a separate mail. APC-1380 is still for the main body of H.MediaMIB. Perhaps Annex 3.4 should read H.221 instead of RAS judging from Mr. Maeng's request of document numbers? Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp *********************************************************** > Dear Mr. Okubo: > I just got finished with the audio call. I certainly want to do what > you > think is best. Here are teh two alternatives which were discussed. > > Option 1) A single document (APC 1380) which has the following > Annexes: > > Annex 1 - RTP MIB > Annex 2 - H.323 MIB > Annex 2.1 Textual Conventions > Annex 2.2 H225 > Annex 2.2.1 CallSignalling > Annex 2.2.2 RAS > Annex 2.3 Endpoint > Annex 2.4 Gatekeeper > Annex 2.5 Gateway > Annex 2.6 MC > Annex 2.7 MP > Annex 3 H320 > Annex 3.1 Textual Conventions > Annex 3.2 Endpoint > Annex 3.3 CallSignalling > Annex 3.4 RAS > Annex 4 Common > Annex 4.1 H245 > > Option 2) Present the same document as option 1. However, submit each > proposed annex as an individual APC because contributions are coming > from > multiple companies and it will be easier to review multiple annexes as > separate APCs. > > Please advise which method you'd prefer. The companies submitting > contributions - Cisco, IBM Haifa, VTEL, VideoServer prefer number 2 > just > because it requires less coordination at this point. > > Thank you in advance, > George Kajos > VideoServer > 63 Third Avenue > Burlington, MA 01803 > tel: (781) 505-2193 > fax: (781) 505-2101 > email: gkajos(a)videoserver.com > > > > -----Original Message----- > From: okubo [SMTP:okubo@giti.or.jp] > Sent: Wednesday, May 27, 1998 11:42 AM > To: George Kajos > Subject: Re: Audio Call minutes for 5/20/98 > > Dear Mr. Kajos, > > The mail you distributed through the reflector looks empty. > > Using this opportunity, can I confirm that you will produce Draft > H.mediamib > as APC-1380 as a single document? Please advise me if you are going to > submit > more than one draft Recommendation documents (e.g. in several parts). > > Best regards, > > Sakae OKUBO (Mr.) > *********************************************************** > Waseda Research Center > Telecommunications Advancement Organization of Japan (TAO) > 5th Floor, Nishi-Waseda Bldg. > 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo > 169-0051 Japan > Tel: +81 3 5286 3830 > Fax: +81 3 5287 7287 > e-mail: okubo(a)giti.or.jp > ***********************************************************

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RDC discussion issues for audio call Thursday May 28
by Mark Duckworth 27 May '98

27 May '98

Here are some suggestions for discussion. Should this work be done in Q14, with input from Q3? Is there general acceptance of the PictureTel proposal given below? Comments on the 6 goals listed below? Comments on the 8 points of the proposal listed below? If there is time and interest, here are some more technical issues we could discuss: We know some H.RDC commands (from H.281) need timestamps, and some need a retransmission mechanism for reliability. Should these mechanisms apply at the H.224 level, so all H.224 clients are affected, or should it be done at the H.RDC level? Should we use RTP? Should the stack look like this: IP / UDP / RTP / H.224 / H.RDC ? Should we use one UDP port for all H.224 clients, or a separate port for each client? Should we use the H.224 packet format, using Q.922, as specified in H.224? Or should we simplify it for H.323 and require gateways to translate? Should we try to combine RTP and H.224 into one layer? What are the anti-spoofing issues? Can H.224 packets be validated in the same manner as audio or video packets? ============================================================ This is a summary of the PictureTel proposal for Remote Device Control for H.323, which we discussed in the Q3/Q14 audio conference held on May 7. The Goals: 1) Provide FECC for H.323 conferences. 2) Interoperate with H.320 and H.324 systems with H.281 through gateways. 3) Simple to implement for basic FECC model using H.281 compatible messages. Additional features should be optional. 4) Use a common protocol for point-to-point and multipoint conferences. 5) Add optional support for new camera control mechanisms and for control of other types of devices, such as in T.RDC. 6) Make it extensible for new standard and non-standard features. The Proposal: 1) Start by encapsulating the whole H.224/H.281 stack within UDP, in an H.245 logical channel. 2) Add timestamps to real-time (start/continue/stop) messages, somehow (RTP or other). Receivers can use this to compensate for jitter in the network. Receivers free to ignore these. 3) Add functions from T.RDC into H.281 as optional extensions. Probably we will want to modify these a little, for instance to support positioning units based on field of view. One possibility is to define a new H.281 command code which indicates the rest of the PDU is an ASN.1 coded message, and use the ASN.1 taken from T.RDC. 4) For non-real-time commands (all except start/continue/stop), add a simple retransmission mechanism (just numbered messages and numbered ACKs) to supply reliable (if inefficient) transport on top of UDP. We can crib this from existing standards, such as NSRP from Annex A/H.324. 5) Define the functions of an H.224 router to reside in an MC or MCU. This would mostly be to manage flow control (or not) as does the H.320 LSD channel, rebroadcast info, route info, etc. This might also include caching capsets. 6) Make sure addressing and scope issues are synchronized with H.245 (use M/T addressing probably). 7) Break out the capability exchange function of H.224 into a new H.245 (and therefore TCP) generic cap exchange function that doesn't require the H.245 engine to recognize the contents of the caps, but merely to pass them along (as does H.224 capex). These "non collapsing capabilities" will map 1:1 at the gateway to the existing H.224 cap exchange. 8) In future, add T.124-like capability collapsing (AND, OR, etc.) to H.245. Details need work, but we'd like to support multicast and large conferences. This is not immediately useful for RDC, but would supply a generic extended H.224 stack that would provide for future simple control protocols without requiring upgrades to deployed infrastructure equipment such as MCs, MCUs, and gateways. Mark Duckworth PictureTel duckworthm(a)pictel.com

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H.323 over ISDN
by TADRIST Azdine CNET/DSE/ISS 27 May '98

27 May '98

It seems that I have a few problems to send this mail. I wish this time will be the good one... ------------------ Dear colleagues, I'm Mr Azdine Tadrist, and as a colleague of Mr Jean-Pierre Blin, I spent a few times on a draft annex of H.323 regarding the use of V.140 for H.323 point-to-point communications over ISDN. This draft was discussed in Japan last February. There it was decided that the annex should specify default PPP parameters that would be implemented by such terminals. Actually, as I was not in Japan, I don't really understand what was meant by PPP parameters ; did you mean LCP configuration options ? If so, these parameters have default values defined in RFC 1661 ; does anybody disagree with using these values ? Moreover, the same values could be set within a multilink configuration, as the same LCP rules apply in that case. Plus, we could recommend RFC 1990 (MP) as a choice for a multilink protocol, if there is nobody objects. If you could be somehow helpful in that issue, or wanted to comment or even criticize these points, I would really appreciate. Thanks (and see most of you in Cannes). -- -a-z-d-i-n-e------

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APC numbers
by Sakae OKUBO 27 May '98

27 May '98

Dear Senthil Sengodan, Dear Mark Reid, Dear Glen Freundlich, Dear Radhika R. Roy, Dear Yongmin Choi, In response to your requests, new APC numbers have been allocated as attached. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp *********************************************************** Documents for the Cannes meeting (8-11 June 1998) ----------------------------------------------------------------------- APC- Source Provisional Title ----------------------------------------------------------------------- 1373 Editor Draft H.323 Annex E(Faster Connection Method) (D. Gurle) 1374 Editor Draft H.323 Annex F (Single Use Audio Terminal) (J. Ott) 1375 Editor Draft H.225.0 V3 (including Annex G Inter-Domain (G. Freundlich) Communications) 1376 Editor Draft H.450.4 (M. Korpi) 1377 Editor Draft H.450.5 (M. Korpi) 1378 Editor Draft H.450.6 (M. Korpi) 1379 Editor Draft H.245 V5 (M. Nilsson) 1380 Editor Draft H.MediaMIB (G. Kajos) 1381 Editor Draft H.246 Annex B and Discussion Topics (M. Reid) 1382 Nokia On the use of Multicast scope for gatekeeper discovery 1383 Nokia Efficient call setup in H.323 systems 1384 Nokia Comments on H.235 1385 AT&T Inter-GK requirements and architectures 1386 Korea Telecom Detailed architectures and procedures for dynamic multicast network -----------------------------------------------------------------------

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Re: Registration of contributions
by Roy, Radhika R, ALTEC 27 May '98

27 May '98

Dear Mr. Okubo: I would be glad if you would let me know how late you would accept the contribution. Based on this, I would be able to send the contribution that I expected to present in the Cannes meeting. Sincerely, Radhika R. Roy AT&T USA (732) 949 8657 rrroy(a)att.com > ---------- > From: Sakae OKUBO[SMTP:okubo@GITI.OR.JP] > Reply To: Mailing list for parties associated with ITU-T Study Group > 16 > Sent: Monday, May 25, 1998 9:43 PM > To: ITU-SG16(a)MAILBAG.INTEL.COM > Subject: Registration of contributions > > Dear Q.12-14/16 experts, > > The Cannes meeting is approaching, but so far I have received no > registration of the contributions. As a prompt, I have pre-assigned some > APC numbers for the draft Recommendations to be surely determined at the > September SG16 meeting. Please register your contributions as soon as > possible, otherwise the SG16 management will have to cancel the meeting > ... > > Best regards, > > Sakae OKUBO (Mr.) > *********************************************************** > Waseda Research Center > Telecommunications Advancement Organization of Japan (TAO) > 5th Floor, Nishi-Waseda Bldg. > 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo > 169-0051 Japan > Tel: +81 3 5286 3830 > Fax: +81 3 5287 7287 > e-mail: okubo(a)giti.or.jp > *********************************************************** > > Documents for the Cannes meeting (8-11 June 1998) > ----------------------------------------------------------------------- > APC- Source Provisional Title > ----------------------------------------------------------------------- > 1373 Editor Draft H.323 Annex E(Faster Connection Method) > (D. Gurle) > 1374 Editor Draft H.323 Annex F (Single Use Audio Terminal) > (J. Ott) > 1375 Editor Draft H.323 Annex G (Inter-Domain Communications) > (G. Freundlich) > 1376 Editor Draft H.450.4 > (M. Korpi) > 1377 Editor Draft H.450.5 > (M. Korpi) > 1378 Editor Draft H.450.6 > (M. Korpi) > 1379 Editor Draft H.245 V5 > (M. Nilsson) > 1380 Editor Draft H.MediaMIB > (G. Kajos) > ----------------------------------------------------------------------- >

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about H.323 over ISDN
by TADRIST Azdine CNET/DSE/ISS 27 May '98

27 May '98

Dear colleagues, I'm Mr Azdine Tadrist, and as a colleague of Mr Jean-Pierre Blin, I spent a few times on a draft annex of H.323 regarding the use of V.140 for H.323 point-to-point communications over ISDN. This draft was discussed in Japan last February. There it was decided that the annex should specify default PPP parameters that would be implemented by such terminals. Actually, as I was not in Japan, I don't really understand what was meant by PPP parameters ; did you mean LCP configuration options ? If so, these parameters have default values defined in RFC 1661 ; does anybody disagree with using these values ? Moreover, the same values could be set within a multilink configuration, as the same LCP rules apply in that case. Plus, we could recommend RFC 1990 (MP) as a choice for a multilink protocol, if there is nobody objects. If you could be somehow helpful in that issue, or wanted to comment or even criticize these points, I would really appreciate. Thanks (and see most of you in Cannes). -- -a-z-d-i-n-e------

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Where can I get information about H.324I and H.324M?
by Vincent Chen 27 May '98

27 May '98

Dear All, Where can I get information about H.324I and H.324M? Thanks! Best Regards, Vincent Chen

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Audio Call minutes for 5/20/98
by George Kajos 26 May '98

26 May '98

------ =_0_MIME_Boundary_340.356acb09.imdlr1j0.mail1.videoserver.com Hello Folks, I've attached the minutes from last meeting as an .rtf document and as inserted text below. Please let me know before the end of the day today (5/26) if you need an phone number for tomorrow's conference. Thanks, George Kajos VideoServer 63 Third Avenue Burlington, MA 01803 tel: (781) 505-2193 fax: (781) 505-2101 SQ16 Q14 H.Multimedia MIB Audio Call 5/20 Minutes Agenda - address action items from previous week. 1. George Kajos - Publish meeting minutes (this report) and schedule next conference. 2. George Kajos - Confer with ISO network management experts regarding placement of H.Multimedia MIB. Check with Mr. Thom on status of liaison to SG4 discussing topic. 3. Group - Research us of Global counters as they relate to usefulness in fault isolation and performance monitoring in network management applications. 4. Group - Try to achieve resolution on Admission table indices. 5. Group - Resolve correlation of indices between Admission and CallSignalling Tables. 6. Group - Resolve correlation of indices between Registration and Zone Tables. 7. Michael Thatcher - Send revised APC-1349 and textual conventions MIB to mailing list. 8. Irina Suconick - update APC-1346, APC-1347, and APC-1348 to use textual conventions described in document sent to mailing list by Michael Thatcher. 9. Joon Maeng - Reflect meeting minutes to Q.11 mailing list and request contributions for H.320 MIBs. Attendees: Mike Thatcher, Irene Kuffel, Cisco Bill Strahm, Intel Joon Maeng, Vtel David Walker, Don Wade, Annette Lanteigne, Mitel Chris Gindel, PakNetX George Kajos, David Reich, Irina Suconick, Santo Wiryaman, VideoServer Zhi Mizrahy, IBM Haifa Action Item Review Minutes from 5/13/98 - sent on 5/18/98. Specific corrections will be discussed in conjunction with the action item below. MIB Tree placement - During the previous week, George discussed the status of the SG4 liaison with Gary Thom. Gary knows of no response yet. During the meeting the issue was discussed again. There is the concern that it isn*t possible to register SNMPv2 MIBs in an ISO tree. One issue, though not confirmed, is administrative authority. Another would be a perceived requirement that the MIBs be converted into a format appropriate for ISO CMIP management. There remains the strong desire to get feedback on this work from the IETF. Finally, it was mentioned a fallback plan would be to register the H.Multimedia MIB tree under an Enterprise number. Global counters - There was a basic discussion regarding the value of global statistics for fault isolation and performance management. Some commonly held SNMP MIB design philosophies were restated (without backup reference) during the meeting. Examples were: 1) to put complexity in client applications rather than agents; 2) to err on the side of not enough rather than too much information; 3) experience in previous MIB developments that counters were the items most often deprecated. The result of the discussion is two actions will be taken with the RAS-MIB. The first is to reduce down *in* and *out* variables to a single instance and the second is remove all the *request* counters while retaining *confirms and rejects.* The motivation for this reduction was to respond to the previous week*s criticism that there were too many counters in the current proposal. Admission Table Indices - This item came about from a view the previous week that there were cases when the current indices would not be unique. At the time it was requested that an example be presented at the next call. No example was brought forth so the action item is still pending. Admission and CallSignalling Table Index Correlation - Another opinion from the previous week was that there should be index correlation between the Admission Table and the CallSignalling MIB Call Table. However, there is no requirement that a direct call model gatekeeper support H.225 Q.931 making this somewhat difficult. The action item is on hold pending resolution. Registration and Zone Tables Index Correlation - It was also expressed that these two tables should be correlated. It was pointed out that an indirect correlation exists and is sufficient. Unless there is further objection, this issue is closed. APC-1349 and textual conventions MIB to be sent to the mailing list - These two MIBs will be submitted as APCs to the Cannes meeting. APC- 1346, APC-1347, APC-1348 to be modified to use textual conventions MIB - This has been done and the three APCs will be submitted to the mailing list this in a separate mail message. Request for input from Q.11 for H.320 MIBs - This request has been issued to the SG16 reflector. Joon Maeng will submit a proposal to the Cannes meeting. New Items GW MIB - Zhi Mizrahy and a colleague from IBM Haifa offered to present a contribution to the mailing list for a Gateway MIB. During the discussion regarding the gateway MIB, it was requested that all of the tables from the MIBs could be implemented at the applications entity level rather than in the stack. The justification for this was timing - it is desirable to get this work implemented even before individual protocol stacks could be instrumented with these MIBs. The group felt this was a good idea. Another concern was the development of a gateway hardware requirements MIB. This idea was not that well understood. Moreover, it was pointed out that the group might be straying somewhat from the H.Multimedia. Some relevant hardware type MIBs might also be covered in work in other standard bodies. H.225 CallSignalling and H.245 MIB - George requested that the group look over these two proposals for discussion in the 5/27/98 meeting. New Action Items 10. Zhi Mizrahy and a colleague - Develop a gateway MIB proposal - hopefully in time for the Cannes meeting in June. 11. Group - review H.225 CallSignalling and H.245 MIBs. Next Meeting - Audio conference Wednesday, May 27, at 11:00-1:00 PM Eastern Standard Time. Send email t[[ S200598.RTF : 3634 in S200598.RTF ]] gkajos(a)videoserver.com for a reservation and an audio number. ------ =_0_MIME_Boundary_340.356acb09.imdlr1j0.mail1.videoserver.com Content-Type: application/octet-stream; name="S200598.RTF" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="S200598.RTF" e1xydGYxXGFuc2lcYW5zaWNwZzEyNTJcdWMxIFxkZWZmMFxkZWZsYW5nMTAzM1xkZWZsYW5nZ mUxMDMze1xmb250dGJse1xmMFxmcm9tYW5cZmNoYXJzZXQwXGZwcnEye1wqXHBhbm9zZSAwMj AyMDYwMzA1MDQwNTAyMDMwNH1UaW1lcyBOZXcgUm9tYW47fXtcZjFcZnN3aXNzXGZjaGFyc2V 0MFxmcHJxMntcKlxwYW5vc2UgMDIwYjA2MDQwMjAyMDIwMjAyMDR9QXJpYWw7fQ0Ke1xmM1xm cm9tYW5cZmNoYXJzZXQyXGZwcnEye1wqXHBhbm9zZSAwNTA1MDEwMjAxMDcwNjAyMDUwN31Te W1ib2w7fXtcZjE0XGZuaWxcZmNoYXJzZXQyXGZwcnEye1wqXHBhbm9zZSAwNTAwMDAwMDAwMD AwMDAwMDAwMH1XaW5nZGluZ3M7fX17XGNvbG9ydGJsO1xyZWQwXGdyZWVuMFxibHVlMDtccmV kMFxncmVlbjBcYmx1ZTI1NTtccmVkMFxncmVlbjI1NVxibHVlMjU1O1xyZWQwXGdyZWVuMjU1 XGJsdWUwO1xyZWQyNTVcZ3JlZW4wXGJsdWUyNTU7DQpccmVkMjU1XGdyZWVuMFxibHVlMDtcc 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1 0

Registration of contributions
by Sakae OKUBO 26 May '98

26 May '98

Dear Q.12-14/16 experts, The Cannes meeting is approaching, but so far I have received no registration of the contributions. As a prompt, I have pre-assigned some APC numbers for the draft Recommendations to be surely determined at the September SG16 meeting. Please register your contributions as soon as possible, otherwise the SG16 management will have to cancel the meeting ... Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp *********************************************************** Documents for the Cannes meeting (8-11 June 1998) ----------------------------------------------------------------------- APC- Source Provisional Title ----------------------------------------------------------------------- 1373 Editor Draft H.323 Annex E(Faster Connection Method) (D. Gurle) 1374 Editor Draft H.323 Annex F (Single Use Audio Terminal) (J. Ott) 1375 Editor Draft H.323 Annex G (Inter-Domain Communications) (G. Freundlich) 1376 Editor Draft H.450.4 (M. Korpi) 1377 Editor Draft H.450.5 (M. Korpi) 1378 Editor Draft H.450.6 (M. Korpi) 1379 Editor Draft H.245 V5 (M. Nilsson) 1380 Editor Draft H.MediaMIB (G. Kajos) -----------------------------------------------------------------------

1 0

H.multimedia and the RTP MIB
by Baugher, Mark 21 May '98

21 May '98

I had a conflict and missed George's meeting this week. My vacation begins tomorrow so I'll miss next week's meeting as well, but I would like to poll H.multimedia people regarding the placement of the RTP MIB in H.multimedia. RTP is of course part of H.323 and this MIB collects RTP-specific information for the purposes of auditing RTP operation (SSRC selection and collision, RTCP messaging, session quality, and other information). My assumption is that it is a necessary part of H.multimedia. I'd like to hear others' opinions on this topic. Mark

1 0

Directory Listings
by frank＠NEWQUESTCITY.COM 20 May '98

20 May '98

I just came across your e-mail address on a Web site. Apparently you have an interest in people finding out about you. Let me suggest a few directories that you may use for FREE advertising and exposure. (You may list yourself on these directories even if you don't have a Web page. And, there is absolutely no fee or strings attached.) National Business Directory http://www.newquestcity.com/dir.htm National Community Directory http://www.newquestcity.com/comdir.htm National Realty Directory http://www.newquestcity.com/natdir.htm These directories allow you to classify your organization or business in one of over 1,000 categories. Your listing appears simultaneously in one of the over 3,500 New Quest City community or business directories. You may post your listing in more than one city or nationally. (http://www.newquestcity.com) To make your posting simply find other listings in your category. On the results page you will find a link for submitting your listing. Remember that this is a totally FREE service. I am contacting you because I think these directories are something that you will benefit from. If for some reason I have contacted you in error, please accept my sincere apology. Unless you respond, I will make the utmost effort to ensure that I never contacted you again. Nevertheless, I do hope that you take the time to visit New Quest City and review our programs and features. Thanks. Sincerely, Frank Frank(a)newquestcity.com

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Fw: May 28 Remote Device Control Conference
by Gary A. Thom 19 May '98

19 May '98

All interested sg16 q11,12,13,14 expets should participate. ------------------------ From: Murry.McEntire(a)mci.com Subject: May 28 Remote Device Control Conference Date: Tue, 19 May 1998 10:25:29 -0700 To: T120 Interest Group <t120-interest(a)imtc.org> > > On Thursday May 28, 1998 an audio conference to discuss Remote Device > Control (RDC) has been scheduled at 11:00 AM Eastern Time. > The telephone number is +1-212-547-0306, with a passcode of 3865. > The bridge will be available for 2 hours. > > [I assume Bruce DeGrasse or John Boucher will forward this information > to other reflectors as needed.] > > -- Murry > ----------------------------------------------------------------------- > Murry McEntire Senior Engineer networkMCI Conferencing > email: Murry.McEntire(a)mci.com phone: 719 535-6954 vnet: 622-6954 > MCI, 4177/117, 2424 Garden of the Gods Road, Colorado Springs, CO 80919 > ----------------------------------------------------------------------- > ---------------End of Original Message----------------- ------------------------------------------------------ Name : Gary A. Thom Company: Delta Information Systems, Inc. Address: 300 Welsh Rd., Bldg 3 Horsham, PA 19044 USA Phone : +1-215-657-5270 Fax : +1-215-657-5273 E-mail : gthom(a)delta-info.com ------------------------------------------------------

1 0

Venn diagrams supporting SUD concept
by Muijnck, J.H. de 19 May '98

19 May '98

dear SG16 colleagues, In the discussion on SUDs, I would like to state that we should specify the capabilities that are supported in the various devices. To my understanding, we are now in the early phase of defining SUDs for the black phone, secure black phone and the text telephone. I think the concept of SUDs is very powerful since the market is asking for this. Therefore, I also believe that this is just the beginning of a long list of single use devices. In order to prevent interoperability problems between two SUDs, or between an H.323 compliant device and a SUD, I propose to specify capabilities that are supported in these devices, in terms of Venn diagrams. For instance, a black phone is a subset of a secure blackphone, and does not contain any extra features, and both lay within the scope of all H.323 capabilities, as does the text telephone. This text phone however, has got some properties in common with the blackphone, but not all. I'm sure that this will be helpful in the future in case discussions rise on how to define more SUDs than just these three. I hope this will also help us now in specifying how we provide interoperablility. bye for now, Jeroen de Muijnck KPN Research The Netherlands

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H.Multimedia conference call minutes
by George Kajos 18 May '98

18 May '98

Folks, Below are the minutes from the SNMP audio call held on 5/13. We will convene to discuss the action items on 5/20 from 11:00 - 1:00 PM EST. Please let me know by end of day Tuesday 5/19 if you plan to call into the bridge and need a phone number. Thanks, George Kajos VideoServer 63 Third Avenue Burlington, MA 01803 tel: (781) 505-2193 fax: (781) 505-2101 -------------------------------------------------------------------------- SQ16 Q14 H.Multimedia MIB Audio Call 5/13 Minutes Agenda 1. Introductions - identify company, area of interest, likelihood of a submission to the June ITU-T SG16 Q.11-14 Rapporteur's meeting in Cannes, France 2. Discussion of the April SG16 Q.11-14 Rapporteur's meeting in Japan and agreements identified in the Q.14 trip report (TD16, sec 6.2.3) 3. Discussion of the enclosed hierarchy document 4. Proposed changes to APC-1347 and APC-1349; discussion of all the APC contributions 5. Organization of the H.Multimedia MIB document 6. IETF relationship 7. Planning for future meetings and division of labor 1. Attendees: Mike Thatcher, Irene Kuffel, Dan Klenke, Cisco Mark Baugher, B.Strahm Intel Joon Maeng, Vtel David Walker, Wade ?, Mitel Orit Levin, Radvision Chris Gindel, PakNetX Don Dewar, George Kajos, David Reich, Irina Suconick, Santo Wiryaman, VideoServer 2. Temporary document 16, sec 6.2.3 The Q.14 trip report was read out loud and discussed. TD-26 is a liaison to SG4 to determine if and how to add the H.Multimedia MIBs under the CCITT tree. It was questioned whether any published MIBs are under trees other than {iso (1) org (3) dod (6) internet (1)} and, if so, where they are published. The security issue was restated without discussion. It was pointed out that the MIBs developed in this work need the ability to be proxied for use by TMN (telecommunications management network). 3. Hierarchy document The updated hierarchy was discussed. While it was generally agreed to, doubt was expressed as to whether there would be any contributions to the media codecs and T.120 areas before September 1998. 4. How to reduce overlap with Gatekeeper and RAS MIBs Mike Thatcher discussed that he split out the H.323 textual conventions into a separate document so all other modules can import it. Irina Suconick and Mike Thatcher discussed their updates to APCs 1347 and APC 1349. Principle decisions to reduce the overlap included 1) the gatekeeper MIB would rely on the registration and admissions table in RAS MIB. Most Gatekeeper tables except the Zone and Segment moved to RAS MIB The Zone table indexed by unsigned integer instead of by name to keep OID smaller. Gatekeepers will have information on their own zone(s) and zones of other gatekeepers that a gatekeeper knows about. There was a great deal of discussion about the indexing scheme for the admission table. One concern was that 5 indices were too large to fit in as a 128 byte OID. Another was that without the Revision 2 CallID, the indices do not provide uniqueness. The use of CallID was debated because it is unavailable to version 1 gatekeepers. Additional input was that there should be index correlation between the Admission Table and the CallSignalling MIB Call Table. However, there is no requirement that a direct call model gatekeeper support H.225 Q.931 making this somewhat difficult. On the topic of correlation between the Zone Table and Registration table, Mike thought that an indirect correlation existed. Others disagreed. Another concern was that most tables need to have read/write access. The SNMP V2 rowStatus technique was pointed out as a mechanism to allow administrative static entries into registration and other tables. 4a MIB counter32 discussion A more general comment was that there are too many counters. George asked that she specify which counters need to be removed. The response was that all global counters should be removed as it is no longer standard practice. George strongly disagreed and pointed out that among the reasons for the MIB effort is fault isolation and performance measurement. Most of the SNMP V2 RFC MIBs have *counter32* for this reason. Resolution of this issue will be done by discussing each counter and justify its existence or removal by group consensus. 5. Organization of the documents George wants H.Multimedia management document to describe goals, conventions, relation to other work and make the MIBs individual annexes. The SG4 liaison requests input on this issue. The structure of the H.Multimedia MIB document will be a topic at the June SG16 meeting. In particular it was thought that a proposal should be generated and presented to Mr. Bigi. 6. IETF relationship The group expressed a preference for conducting the work in the ITU rather than the IETF. However, the overall study group agreed to have the work examined by the IETF to determine if there was any interest. This will still be the plan of record. If reaffirmed in the June ITU-T SG16 Q.11-Q14 meeting, then we will ask for IETF input during the August IETF meeting. It was reaffirmed that the work would use the SMI from SNMP V2. 7. Next Meeting - Audio conference Wednesday, May 20, at 11:00-1:00 PM Eastern Standard Time. Send email to gkajos(a)videoserver.com for inclusion. Action Items 1. George Kajos - Publish meeting minutes (this report) and schedule next conference. 2. George Kajos - Confer with ISO network management experts regarding placement of H.Multimedia MIB. Check with Mr. Thom on status of liaison to SG4 discussing topic. 3. Group - Research us of Global counters as they relate to usefulness in fault isolation and performance monitoring in network management applications. 4. Group - Try to achieve resolution on Admission table indices. 5. Group - Resolve correlation of indices between Admission and CallSignalling Tables. 6. Group - Resolve correlation of indices between Registration and Zone Tables. 7. Michael Thatcher - Send revised APC-1349 and textual conventions MIB to mailing list. 8. Irina Suconick - update APC-1346, APC-1347, and APC-1348 to use textual conventions described in document sent to mailing list by Michael Thatcher. 9. Joon Maeng - Reflect meeting minutes to Q.11 mailing list and request contributions for H.320 MIBs.

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by Bill Masters 18 May '98

18 May '98

subscribe

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H.Multimedia conference call minutes
by George Kajos 18 May '98

18 May '98

------ =_0_MIME_Boundary_324.356078c5.imxr22f0.mail1.videoserver.com [[ itu_snmp.doc : 4612 in itu_snmp.doc ]] Folks, Enclosed are the minutes from the SNMP audio call held on 5/13. We will convene to discuss the action items on 5/20 from 11:00 - 1:00 PM EST. Please let me know by end of day Tuesday 5/19 if you plan to call into the bridge and need a phone number. Thanks, George Kajos VideoServer 63 Third Avenue Burlington, MA 01803 tel: (781) 505-2193 fax: (781) 505-2101 ------ =_0_MIME_Boundary_324.356078c5.imxr22f0.mail1.videoserver.com Content-Type: application/octet-stream; name="itu_snmp.doc" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="itu_snmp.doc" 0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAABAAAAQQAAAAAAA AAAEAAAQwAAAAEAAAD+////AAAAAEAAAAD/////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// 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reminder
by isabelle haignere 18 May '98

18 May '98

Dear Cannes meeting attendees, Azdine who is involved in the organisation of the next meeting remind you to book a room. Please, look at the following message from him. Thank you very much. Isabelle Haigneré >From: TADRIST Azdine CNET/DSE/ISS <azdine.tadrist(a)cnet.francetelecom.fr> >To: HAIGNERE Isabelle CNET/DSE/ISS > <isabelle.haignere(a)cnet.francetelecom.fr> >Subject: reminder >Date: Mon, 18 May 1998 17:49:16 +0200 > > > Dear Cannes meeting attendees, > a new invitation form version was uploaded today, >on the ftp site, correcting some phone numbers mistakes >contained in the previous form. Let me recall you that you are kindly >requested to book >one month (approximately, let's say three weeks) in advance, >by filling and faxing the invitation form directly to the hotel. >(Please refer directly to the form for further precisions). Thank you, >and see you in Cannes. -- >-a-z-d-i-n-e------ >+33 1 45 29 61 76 (tel) >+33 1 45 29 52 94 (fax) --------------------------------------------------- Isabelle HAIGNERE FT/BD - CNET/DSE/SGV 38-40 rue du general Leclerc 92131 Issy-Moulineaux Tel : 33 1 45 29 40 08 Fax : 33 1 45 29 52 94 Email : isabelle.haignere(a)cnet.francetelecom.fr ---------------------------------------------------

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Cleaning up H.225 syntax
by Pete Cordell 18 May '98

18 May '98

Dear All, As most of you are aware, H.225/Q.931 is a strange hybrid combination of Q.931 tag-length-value coding and ASN.1. While this seemed sensible at the time, it would seem that this could easily be cleaned up, leading to a clearer standard, an easier implementation and one that would be easier to use in large installations. To this end it is suggested that steps should be taken to remove this schizophrenia over future product releases. This involves first making entities tolerant of encoding messages that are more ASN.1 based, and later swapping over to being (almost) entirely ASN.1 based. Many of the changes required are consistent with making a robust product in a world where this split personality operates. With the pace of development in this area these changes should not take long to flush out. For example: H.225 states that the Bearer Capability field shall be used, but in practice it serves no purpose. We could say: Current implementations should insert a BC field when sending a SETUP message, but should ignore it on reception. It is intended that in future endpoints will not need to send the BC field. Also: Currently the first E.164 number should be placed in the called party number part when sending Q.931 messages. Endpoints should be tolerant of the first E.164 number being presented in either the Q.931 called party number field, or the first member of the destinationAddress field in the Setup-UUIE. It is intended that in future only the destinationAddress field in the Setup-UUIE will be used. Currently the Facility based re-direction scheme is signalled by including a zero length Facility IE and including the appropriate information in the Facility-UUIE. Receiving entities should be able detect the invocation of the facility re-direction procedures by detecting the presence of the Facility-UUIE without relying on the presence of the zero length Facility IE. It is intended that in future the zero length facility IE shall not be used. Currently Cause values can be presented in both the Q.931 Cause field and H.225 ReleaseCompleteReason. Cause values should only be sent in the H.225 ReleaseCompleteReason, although receiving entities should analyze both on reception. In future it is intended that only the H.225 ReleaseCompleteReason field shall be used. The only fields that we then use in Q.931 are Call State (used only in STATUS), Date/Time (doesn't seem important), Display (nice but not essential - could easily be added to H.225 v3), Notification and Progress Indicators, and Signal. Except for call State (which has a fairly localized use) these are not critical to the operation of the protocol and probably wouldn't be missed if you only wanted to deal with the ASN.1! If others have any thoughts on this matter I would be pleased to here from them. Regards, Pete ================================= Pete Cordell BT Labs E-Mail: pete.cordell(a)bt-sys.bt.co.uk Tel: +44 1473 646436 Fax: +44 1473 645499 =================================

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RE: PictureTel Proposal for H.323 Remote Device Control
by Mark Duckworth 15 May '98

15 May '98

Michele, Correct, T.RDC is a draft that has not been determined. The editor is Andrew Woollett from ImageCom Limited. I couldn't find the draft at the Q3/16 T120 ftp site. I think it belongs at ftp://ftp.imtc-files.org/imtc-site/T120-top/t120_ky98/TRDCreva.zip. Andrew, can you please upload the document to the ftp site? Michele, I will send you my copy in a separate email. Mark mbozier(a)dev.madge.com on 05/15/98 04:28:04 AM To: Mark Duckworth/PicTel cc: Subject: RE: PictureTel Proposal for H.323 Remote Device Control Mark, Sorry to trouble you, but in the discussions on H.323 RDC there has been a lot of reference to T.RDC. Not having been involved with T.120 up until now, could you tell me where I could find a copy of T.RDC. I presume that the status of this document is that it is a draft that is not yet determined text. Thanks, Michele Bozier ---------------------------------------- Michele Bozier Principal Development Engineer Madge Networks, Wexham Springs, Framewood Rd, Wexham, Slough SL3 6PJ, England Tel: +44(0)1753 661331 Fax: +44(0)1753 661011 email:mbozier@madge.com -----Original Message----- From: Mark Duckworth [mailto:Mark_Duckworth@pictel.com] Sent: Friday, May 08, 1998 7:51 PM To: ITU-SG16(a)mailbag.jf.intel.com Subject: PictureTel Proposal for H.323 Remote Device Control This is a summary of the PictureTel proposal for Remote Device Control for H.323, which we discussed in the Q3/Q14 audio conference held on May 7. The Goals: 1) Provide FECC for H.323 conferences. 2) Interoperate with H.320 and H.324 systems with H.281 through gateways. 3) Simple to implement for basic FECC model using H.281 compatible messages. Additional features should be optional. 4) Use a common protocol for point-to-point and multipoint conferences. 5) Add optional support for new camera control mechanisms and for control of other types of devices, such as in T.RDC. 6) Make it extensible for new standard and non-standard features. The Proposal: 1) Start by encapsulating the whole H.224/H.281 stack within UDP, in an H.245 logical channel. 2) Add timestamps to real-time (start/continue/stop) messages, somehow (RTP or other). Receivers can use this to compensate for jitter in the network. Receivers free to ignore these. 3) Add functions from T.RDC into H.281 as optional extensions. Probably we will want to modify these a little, for instance to support positioning units based on field of view. One possibility is to define a new H.281 command code which indicates the rest of the PDU is an ASN.1 coded message, and use the ASN.1 taken from T.RDC. 4) For non-real-time commands (all except start/continue/stop), add a simple retransmission mechanism (just numbered messages and numbered ACKs) to supply reliable (if inefficient) transport on top of UDP. We can crib this from existing standards, such as NSRP from Annex A/H.324. 5) Define the functions of an H.224 router to reside in an MC or MCU. This would mostly be to manage flow control (or not) as does the H.320 LSD channel, rebroadcast info, route info, etc. This might also include caching capsets. 6) Make sure addressing and scope issues are synchronized with H.245 (use M/T addressing probably). 7) Break out the capability exchange function of H.224 into a new H.245 (and therefore TCP) generic cap exchange function that doesn't require the H.245 engine to recognize the contents of the caps, but merely to pass them along (as does H.224 capex). These "non collapsing capabilities" will map 1:1 at the gateway to the existing H.224 cap exchange. 8) In future, add T.124-like capability collapsing (AND, OR, etc.) to H.245. Details need work, but we'd like to support multicast and large conferences. This is not immediately useful for RDC, but would supply a generic extended H.224 stack that would provide for future simple control protocols without requiring upgrades to deployed infrastructure equipment such as MCs, MCUs, and gateways. Mark Duckworth PictureTel duckworthm(a)pictel.com Original Recipient: MBOZIER.DVSEMAIL @ MADGE

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Gatekeeper MIB update
by Michael Thatcher 13 May '98

13 May '98

As a result the audio conference regarding the mib developement for gatekeeper and ras, I am forwarding 2 files. One contains textual conventions which should be used by the ras, gatekeeper and potentially other mib efforts. The second is the a revised gatekeeper mib which removes those tables which are considered duplicates of those in the ras mib. These are ASCII text files. Mike

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Notice of the Q.12-14/16 Cannes meeting
by Sakae OKUBO 12 May '98

12 May '98

To Experts of ITU-T SG16 Q.12/16, Q.13/16 and Q.14/16 Cc Mr. P-A. Probst, Chairman of SG16 Mr. G. Helder, Vice-Chairman of SG16 Mr. F. Tosco, Chairman of WP2/16 Mr. F. Bigi, ITU-TSB Mr. T. Geary, Rapporteur for Q.11/16 De Sakae OKUBO Rapporteur for Q.12/16 in ITU-T SG16 TAO Waseda Research Center 5th Floor, Nishi-Waseda Bldg. 4-36-19 Yoyogi 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 E-mail: okubo(a)giti.or.jp Dale SKRAN Rapporteur for Q.13/16 in ITU-T SG16 Ascend Communications, Inc. 621 Shrewsbury Avenue Shrewsbury, NJ 07702 USA Tel: +1 908 450 1635 Fax: +1 908 450 1611 E-mail: Dale.Skran(a)ascend.com Gary Thom Rapporteur for Q.14/16 in ITU-T SG16 Delta Information Systems Inc. Horsham Business Center Bldg. 3 300 Welsh Road, Horsham, PA 19044 Tel: +1 215 657 5270 ex 23 Fax: +1 215 657 5273 E-mail: gthom(a)delta-info.com ------------------------------------------------ Subject: Notice of Q.12-14/16 Rapporteur Meeting Date: 13 May 1998 ------------------------------------------------ Dear SG16 Colleagues, The subject meeting of ITU-T SG16 experts will be held in Cannes, France at the kind invitation of France Telecom/CNET. Please note that Q.11 will meet concurrently at the same place and have joint sessions with Q.12-14/16. 1. Date ^^^^^^^ 8 (Monday) - 11 (Thursday) June 1998 starting at 9:00 on the first day 2. Venue ^^^^^^^^ Noga Hilton Cannes 50, La Croisette F-06414 Cannes Cedex Tel: + 33 4 93 99 70 00 Fax: + 33 4 92 99 70 17 3. Topics (tentative) ^^^^^^^^^^^^^^^^^^^^^ 1) Review of the relevant group meetings 2) Q.12/16 B-ISDN multimedia systems and terminals - Progress in security, VBR, interworking and other technical aspects - Future direction of ATM based broadband systems 3) Q.13/16 Packet switched multimedia systems and terminals - Decision/Determination as in Section 5.8/APC-1372 - Final liaison to June SG8 decision meeting for T.38 - MIB work with Q14 - Other technical work 4) Q.14/16 Common protocols, MCUs and protocols for interworking with H.300-series terminals - H.235 V2 issues - H.245 V5 for Determination (9/98) - H.246 Annex B for Determination (9/98) - Other H.246 annexes and issues - H.MediaMIB for Determination (9/98) - Other H.MediaMIB issues - H.RDC for Determination (9/98) - Other technical issues 5) Any other Q.12-14/16 related matters - Interaction with other groups 6) Future work 4. Documents ^^^^^^^^^^^^ /// Registration of the document: by 29 May /// /// Distribution of the document: by 1 June /// /// Use the ftp site or e-mail reflector for distribution. /// 1) When you are going to submit a document, please notify S. Okubo as soon as possible, by 29 May (Friday) at the latest. Document number (APC-1nnn) will be allocated. Early indication of your submission plan is welcome. Note - Prefix "APC" comes from Atm (Q.12/16), Packet based (Q.13/16) and Common protocols (Q.14/16) based on coordination with Q.1 ("Q1City"), Q.3 ("T120"), Q.11 ("Q11"), Q.15 ("Q15") groups. 2) You are advised to include a header as follows: ------------------------------------------------------------------ | | | ITU Telecommunication Standardization Sector Document APC-{1nnn}| | Study Group 16 {Version m if relevant}| | Q.12-14/16 Rapporteur Meeting {Date}| | Cannes, 8-11 June 1998 | | | | SOURCE*: { } | | TITLE : { } | | PURPOSE: {Proposal, Discussion, Information, Report, etc.} | | | | _________________________ | | | | | | | | *Contact: Name, e-mail | ------------------------------------------------------------------ 3) All the contributors are requested to distribute their documents as early as possible, at least 7 calendar days in advance of the meeting (by 1 June) by posting them at either of the following: - PictureTel ftp site (please advise S. Okubo of your posting) Site: standard.pictel.com/avc-site Login name: anonymous Directory: Incoming - Q.12-14/16 experts reflector e-mail address: itu-sg16(a)mailbag.jf.intel.com Please avoid the use of reflector when your document is voluminous. Use of Word for Windows 2.0 or 6 or pure text is recommended. 4) Input documents can be retrieved from 9806_Can directory of the ftp site. 5) Please bring 60 copies of your document to Cannes. Your cooperation is needed to start the meeting with all the documents at hand; please note that the copying capacity at the meeting site is limited. 5. Logistic information ^^^^^^^^^^^^^^^^^^^^^^^ Please see the invitation which has been provided by the meeting host (/9806_Can/invitation.zip at the ftp site). 6. Registration ^^^^^^^^^^^^^^^ Please notify Mr. Azdine TADRIST (e-mail: azdine.tadrist(a)cnet.francetelecom.fr) with copy to Rapporteurs (e-mail: okubo(a)giti.or.jp, Dale.Skran(a)ascend.com, gthom(a)delta-info.com) as soon as possible if you plan to attend the Cannes meeting. 7. Hotel Room Reservation ^^^^^^^^^^^^^^^^^^^^^^^^^ Please directly contact the following hotel using the form contained in the invitation. Noga Hilton Cannes 50, La Croisette F-06414 Cannes Cedex Tel: + 33 4 93 99 70 00 Fax: + 33 4 92 99 70 17 Citadines Carnot Aparthotel 1, rue Le Poussin (at the corner of Boulevard Carnot) 06400 Cannes, France Tel: + 33 4 92 98 34 34 Fax: + 33 4 93 38 84 09 We are looking forward to meeting with you in Cannes. Sincerely yours, Sakae OKUBO Dale SKRAN Gary THOM

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Three SG16 white contributions from Q.12/16
by Sakae OKUBO 11 May '98

11 May '98

/// To Q.12-14 experts, the three zipped files have also been /// /// placed at ftp://standard.pictel.com/avc-site/Incoming/ /// Dear Mr. Bigi, I have placed the following three zipped files at the SG16 dropbox: 19455 May 11 16:53 H222_AM5.zip 553899 May 11 16:54 H310V2_D.zip 69739 May 11 16:54 Hbmp_dec.zip They are Q.12/16 white contributions for decision at the September meeting of SG16. 1) H222_AM5.zip contains H222_AM5.doc (Mac Word 6) for Draft H.222.0 Amendment 5. 2) H310V2_D.zip contains the following three files: Version2_clean_97.doc Version2_delta_97.doc Version2_wcm_97.doc They are for Draft H.310 Version 2 and produced with Windows Word 97. The first is for white contribution. The remaining two are for TSB use; delta document and document with change marks, both against H.310 (11/96) + COM16-55 as you requested. Please ignore the Temporary Document heading of Version2_delta_97.doc. 3) Hbmp_dec.zip is for Draft H.bmultipoint produced with Windows Word 7. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp ***********************************************************

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Re: H.323 Implementers Guide
by Kaynam Hedayat 11 May '98

11 May '98

Hi Jim, The version of the implementers guide which you sent does not include the changes that were proposed by APC-1339. These changes to H.323 Annex C and H.245 were approved at the Yokosuka meeting. Thank you. Kaynam jim.toga(a)INTEL.COM 05/05/98 04:23 PM Please respond to ITU-SG16(a)MAILBAG.INTEL.COM To: ITU-SG16(a)MAILBAG.INTEL.COM cc: (bcc: Kaynam Hedayat/PicTel) Subject: H.323 Implementers Guide Greetings, Attached is the latest version of the H.323 implementers Guide (the 'official' ITU errata). This was the text that was generated out of the experts meeting in Yokuska. Please review and send any comments back to me for further updating. Note that there are some ASN.1 fixes for v2 implementations! I have also placed this file in the 'incoming' directory of the PicTel AVC site. Best Regards, jimt. ****************************************************** *** +1-503-264-8816(voice) Intel - Hillsboro, OR. *** *** mailto:jim.toga@intel.com mailto:james.toga@itu.ch *** *** PGP keyID 36 07 86 49 7D 74 DF 57 50 CB BA 32 08 9C 7C 41 *** ******************************************************

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Re: PictureTel Proposal for H.323 Remote Device Control
by Roni Even 10 May '98

10 May '98

Hi, I am sorry I did not attend the conference, I thought it will be Q3 only solution. I have one comment. In H.323 we have different conferences models, centralised or distributed, unlike the centralised model of the H.320. I think that in the goals and proposal we should define how FECC works in distributed conferences. Roni Even Accord email: roni_e(a)accord.co.il ______________________________ Reply Separator _________________________________ Subject: PictureTel Proposal for H.323 Remote Device Control Author: <ITU-SG16(a)MAILBAG.INTEL.COM> at internet Date: 5/8/98 2:50 PM This is a summary of the PictureTel proposal for Remote Device Control for H.323, which we discussed in the Q3/Q14 audio conference held on May 7. The Goals: 1) Provide FECC for H.323 conferences. 2) Interoperate with H.320 and H.324 systems with H.281 through gateways. 3) Simple to implement for basic FECC model using H.281 compatible messages. Additional features should be optional. 4) Use a common protocol for point-to-point and multipoint conferences. 5) Add optional support for new camera control mechanisms and for control of other types of devices, such as in T.RDC. 6) Make it extensible for new standard and non-standard features. The Proposal: 1) Start by encapsulating the whole H.224/H.281 stack within UDP, in an H.245 logical channel. 2) Add timestamps to real-time (start/continue/stop) messages, somehow (RTP or other). Receivers can use this to compensate for jitter in the network. Receivers free to ignore these. 3) Add functions from T.RDC into H.281 as optional extensions. Probably we will want to modify these a little, for instance to support positioning units based on field of view. One possibility is to define a new H.281 command code which indicates the rest of the PDU is an ASN.1 coded message, and use the ASN.1 taken from T.RDC. 4) For non-real-time commands (all except start/continue/stop), add a simple retransmission mechanism (just numbered messages and numbered ACKs) to supply reliable (if inefficient) transport on top of UDP. We can crib this from existing standards, such as NSRP from Annex A/H.324. 5) Define the functions of an H.224 router to reside in an MC or MCU. This would mostly be to manage flow control (or not) as does the H.320 LSD channel, rebroadcast info, route info, etc. This might also include caching capsets. 6) Make sure addressing and scope issues are synchronized with H.245 (use M/T addressing probably). 7) Break out the capability exchange function of H.224 into a new H.245 (and therefore TCP) generic cap exchange function that doesn't require the H.245 engine to recognize the contents of the caps, but merely to pass them along (as does H.224 capex). These "non collapsing capabilities" will map 1:1 at the gateway to the existing H.224 cap exchange. 8) In future, add T.124-like capability collapsing (AND, OR, etc.) to H.245. Details need work, but we'd like to support multicast and large conferences. This is not immediately useful for RDC, but would supply a generic extended H.224 stack that would provide for future simple control protocols without requiring upgrades to deployed infrastructure equipment such as MCs, MCUs, and gateways. Mark Duckworth PictureTel duckworthm(a)pictel.com

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H.bmultipoint draft for decision uploaded to ftp site
by Hidenobu Harasaki 09 May '98

09 May '98

Dear Mr. Okubo and Q.12 experts: I have uploaded draft Recommendation H.bmultipoint for decision (hbmuldec.zip) to ftp://standard.pictel.com/avc-site/Incoming/. This will be submitted to the ITU-T by May 11 as a white paper for decision in September. Best regards Hidenobu Harasaki harasaki(a)ccm.CL.nec.co.jp Principal Researcher C&C Media Research Labs., NEC Corporation Phone: +81 44 856 8083 Fax: +81 44 856 2232

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H.323 Annex D White Paper
by Kumar, Vineet 09 May '98

09 May '98

H.323 Colleagues, I have updated the H.323 Annex D (Real-time IP Fax using H.323) white paper with RTP DTMF as decided at the Yokosuka meeting. This file (h323annexDwhite.doc) has been uploaded in the Incoming directory. Comments are welcome. vineet ----------------------------------------------------------- Vineet Kumar Intel Corporation, JF3-212 2111 NE 25th Avenue Hillsboro, OR 97124-5961 (+1) 503-264-3439 (phone) (+1) 503-264-3375 (fax)

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PictureTel Proposal for H.323 Remote Device Control
by Mark Duckworth 08 May '98

08 May '98

This is a summary of the PictureTel proposal for Remote Device Control for H.323, which we discussed in the Q3/Q14 audio conference held on May 7. The Goals: 1) Provide FECC for H.323 conferences. 2) Interoperate with H.320 and H.324 systems with H.281 through gateways. 3) Simple to implement for basic FECC model using H.281 compatible messages. Additional features should be optional. 4) Use a common protocol for point-to-point and multipoint conferences. 5) Add optional support for new camera control mechanisms and for control of other types of devices, such as in T.RDC. 6) Make it extensible for new standard and non-standard features. The Proposal: 1) Start by encapsulating the whole H.224/H.281 stack within UDP, in an H.245 logical channel. 2) Add timestamps to real-time (start/continue/stop) messages, somehow (RTP or other). Receivers can use this to compensate for jitter in the network. Receivers free to ignore these. 3) Add functions from T.RDC into H.281 as optional extensions. Probably we will want to modify these a little, for instance to support positioning units based on field of view. One possibility is to define a new H.281 command code which indicates the rest of the PDU is an ASN.1 coded message, and use the ASN.1 taken from T.RDC. 4) For non-real-time commands (all except start/continue/stop), add a simple retransmission mechanism (just numbered messages and numbered ACKs) to supply reliable (if inefficient) transport on top of UDP. We can crib this from existing standards, such as NSRP from Annex A/H.324. 5) Define the functions of an H.224 router to reside in an MC or MCU. This would mostly be to manage flow control (or not) as does the H.320 LSD channel, rebroadcast info, route info, etc. This might also include caching capsets. 6) Make sure addressing and scope issues are synchronized with H.245 (use M/T addressing probably). 7) Break out the capability exchange function of H.224 into a new H.245 (and therefore TCP) generic cap exchange function that doesn't require the H.245 engine to recognize the contents of the caps, but merely to pass them along (as does H.224 capex). These "non collapsing capabilities" will map 1:1 at the gateway to the existing H.224 cap exchange. 8) In future, add T.124-like capability collapsing (AND, OR, etc.) to H.245. Details need work, but we'd like to support multicast and large conferences. This is not immediately useful for RDC, but would supply a generic extended H.224 stack that would provide for future simple control protocols without requiring upgrades to deployed infrastructure equipment such as MCs, MCUs, and gateways. Mark Duckworth PictureTel duckworthm(a)pictel.com

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H.245 Version 4 Uploaded to ftp site
by Mike Nilsson 08 May '98

08 May '98

I have uploaded draft version 4 of H.245 (H245_f.zip) to the ftp site ( ftp://standard.pictel.com/avc-site/Incoming/ ) This will be submitted to the ITU-T as a white paper for decision in September. Best regards Mike Nilsson *********************************************************************** * Mike Nilsson Tel: +44 1473 645413 * * Video Processing Unit Fax: +44 1473 643791 * * Centre for Human Communications Email: mike.nilsson(a)bt-sys.bt.co.uk * * BT Laboratories [MLB3/11] * * Martlesham Heath * * Ipswich IP5 7RE * * UK * ***********************************************************************

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Re: H.323 Implementers Guide
by Orit Levin 07 May '98

07 May '98

Hello Jim! 1.I have corrected the Fast Connect Procedure "correction". Upon receipt of the SETUP message, the original called endpoint's actions should have been merged with the additional "mediaControlChannel" support instead of replacing the former. (So I restored the original text.) 2. It also seems that the corrections to H.235 Pictures are missing from the Implemetors Guide. See APC-1360 3.1 Chapter 10.2 Diffie-Hellman with optional Authentication - Phase 1. The rest of the document seems OK to me. Best Regards, Orit Levin RADVision Inc., Mahwah, NJ Tel: 201-529-4300 ext. 230 Fax: 201-529-3516 E Mail: orit(a)radvision.com

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Fw: RDC Audio Conference
by Gary A. Thom 07 May '98

07 May '98

------------------------ From: Bruce DeGrasse <b.degrasse(a)mci2000.com> Subject: RDC Audio Conference Date: Wed, 06 May 1998 14:17:06 -0600 To: T120 Interest Group <t120-interest(a)world.std.com> > Reminder, on Thursday May 7, 1998 an audio conference to discuss Remote Device > Control (RDC) has been scheduled at 11:00 AM Eastern Time. > The telephone number is +1-212-547-0228, with a passcode of 1139. > The bridge will be available for 2 hours. > > Bruce, ---------------End of Original Message----------------- ------------------------------------------------------ Name : Gary A. Thom Company: Delta Information Systems, Inc. Address: 300 Welsh Rd., Bldg 3 Horsham, PA 19044 USA Phone : +1-215-657-5270 Fax : +1-215-657-5273 E-mail : gthom(a)delta-info.com ------------------------------------------------------

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Review of MIB proposals
by George Kajos 06 May '98

06 May '98

Hello folks, At the last ITU-T meeting in Yokosuka, we agreed to work on the SNMP MIB proposals offline before the June meeting. I'd like to find out how many people think they will particpate. Please email me or call if you will attend some editing sessions. Our current thinking is that we will do an audio call next week (Wednesday 5/13) and arrange a face to face meeting if necessary before the end of May. The relevant documents are on the reflector at ftp://standard.pictel.com/avc-site/9804_Yok and are APC-1345 through APC1349 and APC-1365. Thank you in advance, George Kajos George Kajos (gkajos(a)videoserver.com) VideoServer 63 Third Avenue Burlington, MA 01803 tel: (781) 505-2193 fax: (781) 505-2101

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H.323 Implementers Guide
by Jim Toga 05 May '98

05 May '98

Greetings, Attached is the latest version of the H.323 implementers Guide (the 'official' ITU errata). This was the text that was generated out of the experts meeting in Yokuska. Please review and send any comments back to me for further updating. Note that there are some ASN.1 fixes for v2 implementations! I have also placed this file in the 'incoming' directory of the PicTel AVC site. Best Regards, jimt. ****************************************************** *** +1-503-264-8816(voice) Intel - Hillsboro, OR. *** *** mailto:jim.toga@intel.com mailto:james.toga@itu.ch *** *** PGP keyID 36 07 86 49 7D 74 DF 57 50 CB BA 32 08 9C 7C 41 *** ******************************************************

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My new work place
by Sakae OKUBO 04 May '98

04 May '98

Dear SG 16 colleagues, I have been working for Graphics Communication Laboratories (GCL) these four years. However, it finished its R&D activities at the end of last March as set out at the time of its establishment in 1993. I would like to thank you for all of your kind help and cooperation given to me for my GCL works. After returning to ASCII Corporation, of which I am an employee, I am now sent to Waseda Research Center of TA0 (Telecommunications Advancement Organization of Japan) from 1 May. As Researcher, I will engage in the study of "Project on Digital Storage Media Architecture and Access Control System." Though my previous e-mail address okubo(a)gctech.co.jp works for a while, please update my entry to your address book as okubo(a)giti.or.jp at an early occasion. Note 1: ASCII Corporation was established in 1977 by Mr. Kazuhiko Nishi and others. It is now focusing on the business of publication, games and education. It became a member of CSK group at the end of 1997. Note 2: TAO was established in 1979 as an authorized corporation of Ministry of Posts and Telecommunications. It conducts control of communication and broadcasting satellites of Japan and promotes R&D activities for advanced telecommunication and broadcasting technologies. Note 3: Waseda Research Center is one of the institutes created by TAO which contribute to remarkable advancement of the telecommunication and broadcasting technologies by bridging basic research and applied research. Best regards, Sakae OKUBO (Mr.) *********************************************************** Waseda Research Center Telecommunications Advancement Organization of Japan (TAO) 5th Floor, Nishi-Waseda Bldg. 1-21-1 Nishi-Waseda, Shinjuku-ku, Tokyo 169-0051 Japan Tel: +81 3 5286 3830 Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp ***********************************************************

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Re: [VideoPhone:828] [wg5-3: 1153] Bonding Manufacturers Code
by Bob Webber 02 May '98

02 May '98

Mr Holdrege's comment is partially correct: the original BONDING document had no status recognizable by ITU-T. However, ISO has specified BONDING in ISO/IEC 13871-x (corrections were made to the original ISO version of this document, so it exists for more than one value of "x"). I don't, unfortunately, have the answer to Mr Thom's question. Bob Webber PictureTel Corporation matt(a)ASCEND.COM on 05/01/98 10:37:46 AM Please respond to ITU-SG16(a)MAILBAG.INTEL.COM To: ITU-SG16(a)MAILBAG.INTEL.COM cc: (bcc: Bob Webber) Subject: Re: [VideoPhone:828] [wg5-3: 1153] Bonding Manufacturers Code BONDing is not a standard. It's an old industry specification regaring syncing multiple bearer channels. MP or Multilink PPP is IETF RFC 1990 but there are no manufacturer codes for MP. BACP is a control protocol for adding/removing links for MP. At 10:57 PM 5/1/98 +0900, Yuichiro-Tuck-Takagawa wrote: >You means Bonding for ISDN? >That is discussed by IETF:Internet Engineering Task Force. >BACP:Bandwidth Allocation Control Protocol is very common in ISDN Terminal >Adaptors or ISDN Routers in Japan. > > >Regards > > >Takagawa > > >At 09:34 98/05/01 -0800, Gary A. Thom wrote: >> Can any one point me to the person/organization that >> assigns manufacturer codes for the Bonding standards??? >> >> Thanks >> Gary >> ------------------------------------------------------ >> Name : Gary A. Thom >> Company: Delta Information Systems, Inc. >> Address: 300 Welsh Rd., Bldg 3 >> Horsham, PA 19044 USA >> Phone : +1-215-657-5270 Fax : +1-215-657-5273 >> E-mail : gthom(a)delta-info.com >> ------------------------------------------------------ >> >> >************************************************************* >Yuichiro "Tuck" Takagawa Tel:+81-30-248-6357 >Executive Manager Fax:+81-3-5359-5788 >NTT Multimedia Business Dept. takagawa(a)mbd.mbc.ntt.co.jp > >Emergency Internet Pager: 0361241374(a)page.docomonet.or.jp >Private Home Page: http://village.infoweb.or.jp/~fwbc7006/ > >Post:3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo163-8019, Japan > >Find my location on the "MAPION" of Cyber Map Japan by... >http://www.mapion.co.jp/cgi-bin/m?no=2b036m-22nuwy&xy=132,516 >************************************************************* > Matt Holdrege http://www.ascend.com matt(a)ascend.com

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Re: [VideoPhone:828] [wg5-3: 1153] Bonding Manufacturers Code
by Bob Webber 01 May '98

01 May '98

In answer to Mr Thom's original question: Annex B of the ISO BONDING document specifies using the standard ITU country code and registering a manufacturer code with the appropriate national standards body. Bob Bob_Webber(a)PICTEL.COM on 05/01/98 04:02:08 PM Please respond to ITU-SG16(a)MAILBAG.INTEL.COM To: ITU-SG16(a)MAILBAG.INTEL.COM cc: (bcc: Bob Webber) Subject: Re: [VideoPhone:828] [wg5-3: 1153] Bonding Manufacturers Code Mr Holdrege's comment is partially correct: the original BONDING document had no status recognizable by ITU-T. However, ISO has specified BONDING in ISO/IEC 13871-x (corrections were made to the original ISO version of this document, so it exists for more than one value of "x"). I don't, unfortunately, have the answer to Mr Thom's question. Bob Webber PictureTel Corporation matt(a)ASCEND.COM on 05/01/98 10:37:46 AM Please respond to ITU-SG16(a)MAILBAG.INTEL.COM To: ITU-SG16(a)MAILBAG.INTEL.COM cc: (bcc: Bob Webber) Subject: Re: [VideoPhone:828] [wg5-3: 1153] Bonding Manufacturers Code BONDing is not a standard. It's an old industry specification regaring syncing multiple bearer channels. MP or Multilink PPP is IETF RFC 1990 but there are no manufacturer codes for MP. BACP is a control protocol for adding/removing links for MP. At 10:57 PM 5/1/98 +0900, Yuichiro-Tuck-Takagawa wrote: >You means Bonding for ISDN? >That is discussed by IETF:Internet Engineering Task Force. >BACP:Bandwidth Allocation Control Protocol is very common in ISDN Terminal >Adaptors or ISDN Routers in Japan. > > >Regards > > >Takagawa > > >At 09:34 98/05/01 -0800, Gary A. Thom wrote: >> Can any one point me to the person/organization that >> assigns manufacturer codes for the Bonding standards??? >> >> Thanks >> Gary >> ------------------------------------------------------ >> Name : Gary A. Thom >> Company: Delta Information Systems, Inc. >> Address: 300 Welsh Rd., Bldg 3 >> Horsham, PA 19044 USA >> Phone : +1-215-657-5270 Fax : +1-215-657-5273 >> E-mail : gthom(a)delta-info.com >> ------------------------------------------------------ >> >> >************************************************************* >Yuichiro "Tuck" Takagawa Tel:+81-30-248-6357 >Executive Manager Fax:+81-3-5359-5788 >NTT Multimedia Business Dept. takagawa(a)mbd.mbc.ntt.co.jp > >Emergency Internet Pager: 0361241374(a)page.docomonet.or.jp >Private Home Page: http://village.infoweb.or.jp/~fwbc7006/ > >Post:3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo163-8019, Japan > >Find my location on the "MAPION" of Cyber Map Japan by... >http://www.mapion.co.jp/cgi-bin/m?no=2b036m-22nuwy&xy=132,516 >************************************************************* > Matt Holdrege http://www.ascend.com matt(a)ascend.com

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Bonding Manufacturers Code
by Gary A. Thom 01 May '98

01 May '98

Can any one point me to the person/organization that assigns manufacturer codes for the Bonding standards??? Thanks Gary ------------------------------------------------------ Name : Gary A. Thom Company: Delta Information Systems, Inc. Address: 300 Welsh Rd., Bldg 3 Horsham, PA 19044 USA Phone : +1-215-657-5270 Fax : +1-215-657-5273 E-mail : gthom(a)delta-info.com ------------------------------------------------------

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Invitation to the Cannes meeting
by Sakae OKUBO 01 May '98

01 May '98

Dear SG16 colleagues, Attached please find Mr. Jean-Pierre Blin's invitation to the next Q.11-14 meeting in Cannes. This will be placed at the new directory /9806_Can of PictureTel ftp site (ftp://standard.pictel.com/avc-site/9806_Can) Best regards, Sakae OKUBO

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Re: denial of service attacks for H.225.0 call signalling using T CP and UDP transport
by Andrew Draper WVdevmt-WS 01 May '98

01 May '98

Hal purdy wrote: > With that background, our concern about a UDP based approach for > handling H.225.0 messages is that a server (e.g. a Gateway or > Gatekeeper) could be overwhelmed with H.225.0 Setup messages and thus be > unable to serve legitimate connection requests. I think there is a more important issue here. A UDP setup message sent to a H.323 endpoint will cause a (virtual) telephone to ring, or will leave a message on the answering machine etc. If SETUP messages can be carried over UDP then I can do this with a single packet with a faked IP address. > Applying to H.323 call > signalling the knowledge gained in thwarting TCP SYN attacks, such > attacks can be prevented or at least mitigated by a careful design of > the portion of Q.931 state machine which deals with the initial H.225.0 > Setup message. As far as I can tell the Q.931 state machine has to store state as a result of a SETUP message. It's possible to implement TCP so that it stores no state as a result of a SYN message, instead using a one way function to generate the initial sequence number. An implementation doing this can protect itself against an attack from thousands of faked packets per second. I can see no easy way to do this using the current H.225.0 protocol. Thus, I think the TCP three way handshake is necessary to protect against spoofed source addresses. Setup over UDP can only be made safe by requiring strong authentication in the packets. Of course most strong authentication requires at least a three way handshake (to get the keys)... And then Mike Moore wrote: > most of us are installing firewalls that by definition block udp? This is another good point. Firewalls are not panaceas for everything but are a good fix for keeping insecure protocols away from the Big Bad Internet (tm). If H.225.0 over UDP isn't securable (as I believe it isn't) then no firewall or proxy will let the messages through and so all products will use TCP connections first (removing the point of UDP setups). Andy ps. SIP are thinking of putting an (optional) three way handshake into their UDP setup-like-message. -- Andrew Draper - Principal Development Engineer & Firewall Administrator Madge Networks, Wexham Springs, Framewood Road, Wexham, Berks. pgp fingerprint D6 ED 72 4F 96 BB CA 2D 68 74 4C E0 CB B9 0B 3F

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Re: [VideoPhone:828] [wg5-3: 1153] Bonding Manufacturers Code
by Yuichiro-Tuck-Takagawa 01 May '98

01 May '98

You means Bonding for ISDN? That is discussed by IETF:Internet Engineering Task Force. BACP:Bandwidth Allocation Control Protocol is very common in ISDN Terminal Adaptors or ISDN Routers in Japan. Regards Takagawa At 09:34 98/05/01 -0800, Gary A. Thom wrote: > Can any one point me to the person/organization that > assigns manufacturer codes for the Bonding standards??? > > Thanks > Gary > ------------------------------------------------------ > Name : Gary A. Thom > Company: Delta Information Systems, Inc. > Address: 300 Welsh Rd., Bldg 3 > Horsham, PA 19044 USA > Phone : +1-215-657-5270 Fax : +1-215-657-5273 > E-mail : gthom(a)delta-info.com > ------------------------------------------------------ > > ************************************************************* Yuichiro "Tuck" Takagawa Tel:+81-30-248-6357 Executive Manager Fax:+81-3-5359-5788 NTT Multimedia Business Dept. takagawa(a)mbd.mbc.ntt.co.jp Emergency Internet Pager: 0361241374(a)page.docomonet.or.jp Private Home Page: http://village.infoweb.or.jp/~fwbc7006/ Post:3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo163-8019, Japan Find my location on the "MAPION" of Cyber Map Japan by... http://www.mapion.co.jp/cgi-bin/m?no=2b036m-22nuwy&xy=132,516 *************************************************************

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Re: denial of service attacks for H.225.0 call signaling using T
by Chris Purvis WVdevmt-WS 01 May '98

01 May '98

>If you want to sell product to end users won't you have to take into >consideration most of us are installing firewalls that by definition >block udp? This is what H.323 proxies are for. Chris ---------------------------------------- Dr Chris Purvis - Senior Development Engineer, WAVE CC Software Madge Networks Ltd, Wexham Springs, Framewood Road, Wexham, Berks. Phone:+44 1753 661359 email: cpurvis(a)madge.com

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needed changes to H.245 V4
by Dale L. Skran 01 May '98

01 May '98

As noted in the revised meeting report of the Yokosuka meeting, an error was made in agreeing to remove T.38 related references from H.245 V4. Doing so creates a set of forward references, and prevents the ITU-T from moving forward both H.323 Annex D and T.38 Annex B. Note the following: Determination Decision H.245 V4 Feb. 98 Sept 98 H.245 V5 Sept 98 April 99 H.323 Annex D Feb 98 Sept 98 T.38 Annex B June 98 Jan-Feb 99 It can be readily seen that, for example, H.323 Annex D cannot refer to H.245 V5 as this would be a forward reference. Please find attached needed changes to H.245 V4 as previously attached to the draft Annex D H.323. These changes *will not* be included in the H.323 Annex D as they should be in the H.245 white paper. Please contact H.245/Q14 Rapporteur Gary Thom with any questions. Dale Skran Rapporter Q13

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