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Outcome of the Beijing meeting
by OKUBO Sakae 17 May '04

17 May '04

Dear SG16 experts. Last week we had a successful meeting Questions F,G,2-5/16 in Beijing. The reports of the meeting are contained in the following TDs: http://avguest@ftp3.itu.int/av-arch/avc-site/0405_Bei/ General -- TD-32c + LS(TD-50a, TD-51a) Q.F/16 --- TD-09a Q.G/16 --- TD-10b + LS(TD-49a) Q.2/16 --- TD-11a + LS(TD-38a, TD-48a) Q.3/16 --- TD-12a + LS(TD-39, TD-40a) Q.4/16 --- TD-13a + LS(TD-35) Q.5/16 --- TD-14c The document list is found at: http://avguest@ftp3.itu.int/av-arch/avc-site/0405_Bei/0504_Bei.html We reviewed 90 AVD-numbered documents including 15 incoming liaisons and 51 TDs. The list of participants will be advised as soon as it has been received from the host. There were 20 delegates from organizations outside China and more than 20 local participants. Please note that TD-32c does not mention TD-50a (LS to JRG-NGN), but it was agreed to send this liaison at the closing session. All these materials will be integrated into AVD-2503. -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ******************************************************************

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NIST Releases draft for VoIP Security
by Nadim El-Khoury 12 May '04

12 May '04

Hi Everyone, I thought this would be an opportunity to say our 2 cents and comment on this. --NIST Releases Draft Guidelines for VoIP Security (6 May 2004) The National Institute of Standards and Technology (NIST) has released draft guidelines for securing Voice Over IP technology. The suggestions include putting voice and data traffic on logically different networks and denying access to the voice gateway from the data network. NIST is accepting comments on the draft through June 18. http://www.gcn.com/cgi-bin/udt/im.display.printable?client.id=gcndaily2&sto… http://csrc.nist.gov/publications/drafts/NIST_SP800-58-040502.pdf Thank you Nadim El-Khoury

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Call for participation in the ITU Workshop
by OKUBO Sakae 08 May '04

08 May '04

Dear SG16 experts, Please find attached the introduction to the Workshop on Home Networking and Home Services that is held on 17-18 June 2004 in Tokyo. It contains URLs for the updated program and on-line registration. SG16 is cooperating with SG9 for this workshop. Your participation is most welcome. -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ******************************************************************

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Additional documents for the meeting
by Paul E. Jones 05 May '04

05 May '04

Beijing Meeting Attendees, I have uploaded additional documents that were sent to me, including three new liaison statements. I made the liaison statements available as AVD documents. So, the highest numbered AVD document is not 2502. I will make any additional documents available as I receive them, though I will be traveling over the weekend. As such, some documents may not get posted until Sunday when I arrive in Beijing. I look forward to seeing everybody in Beijing! Paul

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Documents for the SG16 Meeting
by Paul E. Jones 05 May '04

05 May '04

Beijing Meeting Attendees, I have uploaded all of the documents that I received by the document deadline today. They now appear on the AVC site here: http://ftp3.itu.ch/av-arch/avc-site/0405_Bei/ Mr Boyle attempted to upload AVD-2490, but that attempt failed-- the file size was zero octets. Unless there is disagreement, I will not mark the document late. It is really not an issue, as that particular document is an editor's draft and certainly something we would want to review in the meeting. There are a few documents missing and I've been informed by most that the documents are forthcoming, but they're just delayed. I hope to have the balance of the papers posted in less than 24 hours. Best Regards, Paul

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Re: Beijing meeting is held as scheduled - correction
by OKUBO Sakae 05 May '04

05 May '04

Dear Q.F,G,2-5/16 experts, At 22:43 -0400 04/05/04, OKUBO Sakae wrote: >[...] We will hold the Beijing meeting of Q.F,G,2-5/16 as scheduled. >Q.B/16 will have its meeting there concurrently. Let me correct the Q.B/16 part of the above message. Mr. Probst, Chairman of SG16, has just advised me that Q.B will not meet in Beijing next week due to insufficient number of dedicated participants. Please note that Q.F,G,2-5/16 will certainly meet there. -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ******************************************************************

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RE: Fall Meeting in Geneva
by simao.campos＠ITU.INT 05 May '04

05 May '04

Dear colleagues The meeting date for the next SG 16 meeting is 16-26 November 2004. This is subject to confirmation at TSAG (July) and on the final agreements of the revised ITU-T Structure. Cheers, Simao > -----Original Message----- > From: Tyler Johnson [mailto:trjohns1@EMAIL.UNC.EDU] > Sent: 05 May 2004 03:12 > To: itu-sg16(a)external.cisco.com > Subject: Fall Meeting in Geneva > > > At the last full SG16 meeting it was said that the next meeting was > scheduled over the US Thanksgiving holiday in Geneva, but I > have yet to > see this on the schedule. Can anyone shed any light on the > meeting date? >

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RE: Comments on AVD-2464 (H.245 OLC Master/Slave conflicts)
by Tsahi Levent-Levi 05 May '04

05 May '04

Hi, The reasons stated below are not the actual reasons. The main reason is the fact that the standard doesn't state anything about conflicts that arise because of uni/bi-direction-ness of channels. Since H.324 can open video channels as bi-directional or uni-directional, such conflicts are quite common. In the Geneva meeting, it was suggested to add a new chapter into the standard about this and a new appendix with the illustrations. Tsahi -----Original Message----- From: Dave Lindbergh [mailto:lindbergh@92f1.com] Sent: Tuesday, May 04, 2004 11:47 PM To: itu-sg16(a)external.cisco.com; Tsahi Levent-Levi Cc: Roni Even; Dave Lindbergh; Paul Jones <paulej(a)packetizer.com> Subject: Comments on AVD-2464 (H.245 OLC Master/Slave conflicts) Hi all, I regret that I will be unable to attend the Beijing meeting. Re AVD-2464, (on H.245 OLC Master/Slave conflicts), the proposed material appears to be redundant with the existing text in C.4.1.3/H.245 and C.5.1.3/H.245. Perhaps I misunderstand. If I remember correctly, this issue was discussed in Geneva, and one of the reasons given for adding this text was that some implementations do not follow the procedures of C.4.1.3 and C.5.1.3 correctly (that is, they don't handle Master/Slave OLC conflicts per those clauses, which can break interworking). If that is the main motivation, I suggest that it would be better to point out the existing text of C.4.1.3 / C.5.1.3 of H.245 to the implementors so they can correct the bug, than to add redundant text, which may make it more difficult to read and understand H.245. This could have the unintended effect of making mistakes in understanding H.245 more likely (by adding complexity to the document), rather than less. Best regards to all, --Dave Lindbergh ---------- Dave Lindbergh Polycom, Inc. 100 Minuteman Road Andover MA 01810 USA Voice: +1 978 292 5366 Email: lindbergh(a)92F1.com H.320, H.323 video by arrangement

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RE: Comments on AVD-2464 (H.245 OLC Master/Slave conflicts)
by Tsahi Levent-Levi 05 May '04

05 May '04

Hi, The reasons stated below are not the actual reasons. The main reason is the fact that the standard doesn't state anything about conflicts that arise because of uni/bi-direction-ness of channels. Since H.324 can open video channels as bi-directional or uni-directional, such conflicts are quite common. In the Geneva meeting, it was suggested to add a new chapter into the standard about this and a new appendix with the illustrations. Tsahi -----Original Message----- From: Dave Lindbergh [mailto:lindbergh@92f1.com] Sent: Tuesday, May 04, 2004 11:47 PM To: itu-sg16(a)external.cisco.com; Tsahi Levent-Levi Cc: Roni Even; Dave Lindbergh; Paul Jones <paulej(a)packetizer.com> Subject: Comments on AVD-2464 (H.245 OLC Master/Slave conflicts) Hi all, I regret that I will be unable to attend the Beijing meeting. Re AVD-2464, (on H.245 OLC Master/Slave conflicts), the proposed material appears to be redundant with the existing text in C.4.1.3/H.245 and C.5.1.3/H.245. Perhaps I misunderstand. If I remember correctly, this issue was discussed in Geneva, and one of the reasons given for adding this text was that some implementations do not follow the procedures of C.4.1.3 and C.5.1.3 correctly (that is, they don't handle Master/Slave OLC conflicts per those clauses, which can break interworking). If that is the main motivation, I suggest that it would be better to point out the existing text of C.4.1.3 / C.5.1.3 of H.245 to the implementors so they can correct the bug, than to add redundant text, which may make it more difficult to read and understand H.245. This could have the unintended effect of making mistakes in understanding H.245 more likely (by adding complexity to the document), rather than less. Best regards to all, --Dave Lindbergh ---------- Dave Lindbergh Polycom, Inc. 100 Minuteman Road Andover MA 01810 USA Voice: +1 978 292 5366 Email: lindbergh(a)92F1.com H.320, H.323 video by arrangement

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Beijing meeting is held as scheduled
by OKUBO Sakae 04 May '04

04 May '04

Dear Q.F,G,2-5/16 experts, There have been expressed some concerns about SARS in Beijing. After having reviewed WHO's information and available news by obtaining TSB's help, I think that SARS is kept controlled. We will hold the Beijing meeting of Q.F,G,2-5/16 as scheduled. Q.B/16 will have its meeting there concurrently. I have had a difficulty to get the updated list of participants from the meeting host. Could you take a look at the table after my signature (as of 26 April) and return a short note to <sokubo(a)waseda.jp> if you are coming to Beijing or not? If you are not listed there but coming, please advise me. Please note that the attached list contains only those from organizations outside China. Local attendees are also welcome to advise me. -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ****************************************************************** List of participants from organizations outside China 26 April (with modifications with received advice) ============================= Surname Given Name ============================= Boyle II Kevin Joseph Gilman Robert Reagan Euchner Martin Fourie Henry Louis Even Roni Flaiani Roberto Schwarz Albrecht Sambasivan Balasubramanian Lehmann Leo Ruditsky Alexander Wilmot Christopher David Tegeler Juergen Pierce Michael Horvath Ernst Blin Jean-Pierre Groves Christian Levent-Levi Tsahi Holmberg Hans-Christer Auerbach David Teising Charles Conrad Jr. Luthi Patrick Hansen Carl Christian Jeong Seong-Ho Xiangyue Cui =============================

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Fall Meeting in Geneva
by Tyler Johnson 04 May '04

04 May '04

At the last full SG16 meeting it was said that the next meeting was scheduled over the US Thanksgiving holiday in Geneva, but I have yet to see this on the schedule. Can anyone shed any light on the meeting date?

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Comments on AVD-2464 (H.245 OLC Master/Slave conflicts)
by Dave Lindbergh 04 May '04

04 May '04

Hi all, I regret that I will be unable to attend the Beijing meeting. Re AVD-2464, (on H.245 OLC Master/Slave conflicts), the proposed material appears to be redundant with the existing text in C.4.1.3/H.245 and C.5.1.3/H.245. Perhaps I misunderstand. If I remember correctly, this issue was discussed in Geneva, and one of the reasons given for adding this text was that some implementations do not follow the procedures of C.4.1.3 and C.5.1.3 correctly (that is, they don't handle Master/Slave OLC conflicts per those clauses, which can break interworking). If that is the main motivation, I suggest that it would be better to point out the existing text of C.4.1.3 / C.5.1.3 of H.245 to the implementors so they can correct the bug, than to add redundant text, which may make it more difficult to read and understand H.245. This could have the unintended effect of making mistakes in understanding H.245 more likely (by adding complexity to the document), rather than less. Best regards to all, --Dave Lindbergh ---------- Dave Lindbergh Polycom, Inc. 100 Minuteman Road Andover MA 01810 USA Voice: +1 978 292 5366 Email: lindbergh(a)92F1.com H.320, H.323 video by arrangement

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Comments on AVD-2464 (H.245 OLC Master/Slave conflicts)
by Dave Lindbergh 04 May '04

04 May '04

Hi all, I regret that I will be unable to attend the Beijing meeting. Re AVD-2464, (on H.245 OLC Master/Slave conflicts), the proposed material appears to be redundant with the existing text in C.4.1.3/H.245 and C.5.1.3/H.245. Perhaps I misunderstand. If I remember correctly, this issue was discussed in Geneva, and one of the reasons given for adding this text was that some implementations do not follow the procedures of C.4.1.3 and C.5.1.3 correctly (that is, they don't handle Master/Slave OLC conflicts per those clauses, which can break interworking). If that is the main motivation, I suggest that it would be better to point out the existing text of C.4.1.3 / C.5.1.3 of H.245 to the implementors so they can correct the bug, than to add redundant text, which may make it more difficult to read and understand H.245. This could have the unintended effect of making mistakes in understanding H.245 more likely (by adding complexity to the document), rather than less. Best regards to all, --Dave Lindbergh ---------- Dave Lindbergh Polycom, Inc. 100 Minuteman Road Andover MA 01810 USA Voice: +1 978 292 5366 Email: lindbergh(a)92F1.com H.320, H.323 video by arrangement

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AVD-2434 and AVD-2435
by Sasha Ruditsky 04 May '04

04 May '04

Hi, I have uploaded AVD-2434 and AVD-2435 in the \incoming directory. Thanks Sasha Ruditsky

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FW: RFC 3762 on Telephone Number Mapping (ENUM) Service Registrat
by simao.campos＠ITU.INT 03 May '04

03 May '04

Dear colleagues, FYI, in case you did not see it... Cheers, Simao

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Q3/16: AVD 2437 for meeting in Beijing
by Tegeler Juergen 03 May '04

03 May '04

Dear all, attached you can find AVD 2437 "AAS INAP Adaptation Packages" which is an update of the delayed contribution D 426 that I presented in Geneva in 01/2004. Comments that were made during the meeting have been considered in the updated document. Changes with respect to D 426 are marked. <<AAS INAP Adaptation Packages AVD 030504.doc>> Best regards, J. Tegeler

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Re: I have uploaded AVD-2428
by Paul E. Jones 30 Apr '04

30 Apr '04

Mr. Okubo, Thanks. I have moved it into place. Paul ----- Original Message ----- From: "OKUBO Sakae" <okubo(a)mxz.mesh.ne.jp> To: "Paul E. Jones" <paulej(a)packetizer.com> Cc: <itu-sg16(a)external.cisco.com> Sent: Friday, April 30, 2004 5:38 AM Subject: I have uploaded AVD-2428 > Dear Paul, > > AVD-2428 has been placed at /Incoming of the avc-site. > > > Questions: 4, 2 > > Source: Waseda University > > Title: User reactions to an experimental Talk-together TV system > > Purpose: Information and discussion > > -- > Best regards, > > OKUBO Sakae > e-mail: sokubo(a)waseda.jp > Visiting Professor > Graduate School of Science and Engineering > Waseda University > ****************************************************************** > Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 > 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 > 239-0847 Japan > H.323 videoconferencing: arranged by advice > ****************************************************************** >

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I have uploaded AVD-2428
by OKUBO Sakae 30 Apr '04

30 Apr '04

Dear Paul, AVD-2428 has been placed at /Incoming of the avc-site. > Questions: 4, 2 > Source: Waseda University > Title: User reactions to an experimental Talk-together TV system > Purpose: Information and discussion -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ******************************************************************

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Reminder: Document Registration Deadline Approaching
by Paul E. Jones 29 Apr '04

29 Apr '04

Folks, This is just a friendly reminder that the document registration deadline is Friday, April 30. Please send your registration requests to me. If you have previously sent me a request, but you did not get acknowledgement from me, please send the request again. Thanks, Paul

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Beijing meeting
by OKUBO Sakae 29 Apr '04

29 Apr '04

Dear those experts who are coming to Beijing, Please advise Ms. Jiang Hong (e-mail:jianghong@catr.com.cn, phone: +86 10 62304729) if you have not received confirmation of your hotel room at Guangzhou Hotel even though you sent your meeting registration/hotel room reservation form. I myself received it by fax. Please note that 1-7 May are "May Day Labor Week" holidays in China. -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ******************************************************************

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Re: Document registration
by OKUBO Sakae 24 Apr '04

24 Apr '04

Dear all, Let me add one thing. At 21:51 -0400 04/04/24, Paul E. Jones wrote: >I just want to remind everybody to please register any documents >they plan to submit to the Rapporteur's meeting in Beijing. Please >send me the following information for each document, if you have not >already received an AVD number from me: > >1) Document Title >2) Question(s) to which the document is directed >3) Source of the document (Editor, Company Name, etc.) > >The deadline for document registration is April 30, 2004. Even if you should have missed this registration deadline or submission deadline (May 4), please be not discouraged to submit your contributions to the meeting. We would still welcome your valuable inputs. However, for fairness of the discussion, your contributions are marked as "late registration/submission" and their considerations are up to the agreement of the meeting. Please do not misunderstand that I am loosening the deadline, I am trying to achieve the best outcome of the meeting. PS I wonder which is more guilty: on time registration but late submission vs late registration but on time submission ... -- Best regards, OKUBO Sakae e-mail: sokubo(a)waseda.jp Visiting Professor Graduate School of Science and Engineering Waseda University ****************************************************************** Waseda University, YRP Ichibankan 312 Tel: +81 46 847 5406 3-4 Hikarinooka, Yokosuka-shi, Kanagawa-ken Fax: +81 46 847 5413 239-0847 Japan H.323 videoconferencing: arranged by advice ****************************************************************** My addresses <okubo(a)giti.or.jp>, <sokubo(a)mn.waseda.ac.jp> are not working any more. If they remain in your address book, could you please replace them with <sokubo(a)waseda.jp>?

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Error in H.245v9
by Paul E. Jones 24 Apr '04

24 Apr '04

Folks, It has been a while since a "serious" error has been identified in an H.323-related spec, but one was just recently discovered in H.245v9. I want to poll the people on the H.323 Implementers List and the SG16 mailing list to see what kind of impact we might have if we change this definition. The problem relates to the "FECData" CHOICE: http://www.packetizer.com/iptel/h245/h245_asn.html#MULTIMEDIA-SYSTEM-CONTRO… It is roughly defined like this: FECData ::= CHOICE { rfc2733 { ... stuff ... } } The problem is that there is no extension marker at the end of the "rfc2793" SEQUENCE, though it was intended that one be inserted. If you look at every other related definition (FECCapability and FECMode), you will see that they do contain an extension marker. We essentially have these ways to resolve this issue: 1.. Change the FECData definition to contain an extension marker 2.. Rename the "FECData" structure and references to something like "FECDataDeprecated" and add a new field called "FECData" and a new structure to go with it. This would mean no other text would have to change in H.323 or H.245 and no implementations would be impacted significantly: applications would be binary compatible, though two system implementing FEC might not open FEC protected channels correctly (one side thinking FEC is used and the other side not, for example). 3.. Create all new data structures and deprecate all current FEC data structures related to the "FECData" CHOICE We've had these kinds of problems in the past and simply corrected them via the H.323-Series Implementers Guide. However, it is always good to understand who, if anybody, will be impacted by such changes. Can you please provide me with information so that we can make an informed decision? Thanks, Paul E. Jones Rapporteur, ITU-T Q2/16 // www.packetizer.com

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Document registration
by Paul E. Jones 24 Apr '04

24 Apr '04

Folks, I just want to remind everybody to please register any documents they plan to submit to the Rapporteur's meeting in Beijing. Please send me the following information for each document, if you have not already received an AVD number from me: 1) Document Title 2) Question(s) to which the document is directed 3) Source of the document (Editor, Company Name, etc.) The deadline for document registration is April 30, 2004. Thanks, Paul

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Cancellation of Q.K /16 meeting
by Leo.Lehmann＠bakom.admin.ch 20 Apr '04

20 Apr '04

Dear experts, Last week on April 13 was the deadline which I set for the reception of contributions regarding Q.K (mobility) for the rapporteur meeting in Beijing. Even if I was waiting one week longer I have not received any contribution so far. To justify a meeting, we need according the ITU-T rules a significant number of contributions and member organizations which want to attend. Due to the lack of contributions I regretfully have to announce that there will be NO meeting of Q.K/16 in May in Beijing. We have a tentative plan to hold a meeting in September (co-located with Q.D,F,G,1-5) if there is enough interest and a sufficient number of contributions. In the interim, I encourage everyone to progress our work by e-mail correspondence. Best regards, Leo Lehmann Rapporteur for Q.K/16

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Fwd:Rapporteur meeting of Q.1
by OKUBO Sakae 16 Apr '04

16 Apr '04

*** Forwarded to those who are interested in Q.1/16 works *** *** Apologies for this delayed forwarding due to some *** *** technical problem of the mailing list or my e-mail *** *** service provider - S Okubo *** >Date: Thu, 08 Apr 2004 10:15:04 +0200 >To: "Q.1/16" <tsg16q1(a)itu.int> >From: Patrick Luthi <patrick.luthi(a)ties.itu.int> >Subject: Rapporteur meeting of Q.1 >X-OriginalArrivalTime: 08 Apr 2004 08:15:14.0656 (UTC) >FILETIME=[9EBE2E00:01C41D41] >Sender: owner-tsg16q1(a)itu.int >Reply-To: Patrick Luthi <patrick.luthi(a)ties.itu.int> >X-Biglobe-VirusCheck: Thu, 08 Apr 2004 17:18:50 +0900 > >Dear experts, > >Yesterday, April 7, was the deadline that I set to make a final >decision on having or not having a Q.1 Rapporteur meeting in May in >Beijing. > >I have only 2 proposed contributions and I received several requests >to progress our work by correspondence. As you know, under the ITU-T >rules, we must have a significant number of both contributions and >member organizations wanting to attend in order to justify an >interim experts meeting. These criteria ensure the successful >progress of our work. > >Therefore, I regretfully have to announce that there will be NO >meeting of Q.1/16 in May. Our next meeting will definitely be in >November in Geneva (SG16), but we also have a tentative plan to hold >a meeting in September (co-located with Q.D,F,G,K,2-5) if there is >enough interest and a sufficient number of contributions. > >In the interim, I encourage everyone to progress our work by e-mail >correspondence. > >Best regards, > >Patrick Luthi Rapporteur for Q.1/16

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