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Output documents of the SG16 meeting (14-24 November)
by OKUBO Sakae 28 Nov '06

28 Nov '06

Dear WP2/16 Question Rapporteurs and Editors, Please upload your final text of Draft Recommendation, Supplement or Implementors' Guide to the following dropbox or send it to me by e-mail: Site: ftp3.itu.int/ User ID: avguest Password: Avguest (Note the uppercase 'A') Directory: avc-site/Incoming This voluntary uploading will facilitate keeping the experts updated. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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Outcome of the SG16 meeting (14-24 November 2006)
by OKUBO Sakae 26 Nov '06

26 Nov '06

Dear WP2/16 experts, The subject meeting was successfully concluded last Friday. Here are listed main results. For more details, please see the following file that contains the reports and the outgoing liaison statements that were produced by WP2/16 and its 11 Questions: http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0611_Gen/WP2-Outcome_061124.z… 1/ Draft Recommendations Consented (to be put to Last Call) ITU-T Rec. T.120 “Data protocols for multimedia conferencing” ITU-T Rec. T.123 “Network-specific data protocol stacks for multimedia conferencing” ITU-T Rec. T.124 “Generic Conference Control” ITU-T Rec. H.222.0 Amendment 1 “Information technology Information technology Generic coding of moving pictures and associated audio information: Systems, AMENDMENT 1: Transport of MPEG-4 streaming text and MPEG-4 lossless audio over MPEG-2 systems” ITU-T H.324 Corrigendum 2 “Corrections for Annex K Media Oriented Negotiation Acceleration Procedure” ITU-T Rec. H.272 (ex H.gamma) “Procedures and values for video gamma compensation in multimedia systems” ITU-T Rec. H.246 Amendment 1 “IEPS aspects” ITU-T Rec. H.460.4 v2 “Call priority designation for H.323 calls” ITU-T Rec. H.225.0 Amendment 1 “Called Party Information in Notify” ITU-T Rec. H.248.2 Amendment 1 “Facsimile, text conversation and call discrimination packages” ITU-T Rec. H.248.25 “Basic CAS packages” ITU-T Rec. H.248.28 “International CAS packages” ITU-T Rec. H.248.30 “RTCP extended performance metrics packages” ITU-T Rec. H.248.40 (ex H.248.ADID) “Application Data Inactivity Detection Package” ITU-T Rec. H.248.44 (ex H.248.MLPP) “Multi-Level Precedence and Pre-emption Package” ITU-T Rec. H.248.46 (ex H.248.CCC) “Connection Capability Control Package” ITU-T Rec. H.248.47 (ex H.248.SCR) “Statistic Conditional Reporting Package” ITU-T Rec. H.350.7 “Directory Services Architecture for XMPP” ITU-T Rec. H.460.22 (ex H.460.spn) “Security protocol negotiation” 2/ Documents Approved T.120 Implementors' Guide H.323 Implementors' Guide H.248 Sub-series Implementors' Guide H.248 Implementors' Guide Version 2 Supplement 2 to the H-Series “H.248 Sub-Series: Packages Guide Release 9” Supplement 5 to the H-Series “Guidelines for Resource Management of Resources for H.248 RTP Terminations” Technical Paper TP.FNTP “Firewall and NAT Traversal Problems in H.323 Systems” Technical Paper TP.RTM “Roadmap for Telemedicine” 3/ Interim Rapporteur meeting hosted by Huawei Date: 12 (Monday)-16 (Friday) March 2007 Place: Shenzhen, China -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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Outcome of the SG16 meeting (14-24 November 2006)
by OKUBO Sakae 26 Nov '06

26 Nov '06

Dear WP2/16 experts, The subject meeting was successfully concluded last Friday. Here are listed main results. For more details, please see the following file that contains the reports and the outgoing liaison statements that were produced by WP2/16 and its 11 Questions: http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0611_Gen/WP2-Outcome_061124.z… 1/ Draft Recommendations Consented (to be put to Last Call) ITU-T Rec. T.120 “Data protocols for multimedia conferencing” ITU-T Rec. T.123 “Network-specific data protocol stacks for multimedia conferencing” ITU-T Rec. T.124 “Generic Conference Control” ITU-T Rec. H.222.0 Amendment 1 “Information technology Information technology Generic coding of moving pictures and associated audio information: Systems, AMENDMENT 1: Transport of MPEG-4 streaming text and MPEG-4 lossless audio over MPEG-2 systems” ITU-T H.324 Corrigendum 2 “Corrections for Annex K Media Oriented Negotiation Acceleration Procedure” ITU-T Rec. H.272 (ex H.gamma) “Procedures and values for video gamma compensation in multimedia systems” ITU-T Rec. H.246 Amendment 1 “IEPS aspects” ITU-T Rec. H.460.4 v2 “Call priority designation for H.323 calls” ITU-T Rec. H.225.0 Amendment 1 “Called Party Information in Notify” ITU-T Rec. H.248.2 Amendment 1 “Facsimile, text conversation and call discrimination packages” ITU-T Rec. H.248.25 “Basic CAS packages” ITU-T Rec. H.248.28 “International CAS packages” ITU-T Rec. H.248.30 “RTCP extended performance metrics packages” ITU-T Rec. H.248.40 (ex H.248.ADID) “Application Data Inactivity Detection Package” ITU-T Rec. H.248.44 (ex H.248.MLPP) “Multi-Level Precedence and Pre-emption Package” ITU-T Rec. H.248.46 (ex H.248.CCC) “Connection Capability Control Package” ITU-T Rec. H.248.47 (ex H.248.SCR) “Statistic Conditional Reporting Package” ITU-T Rec. H.350.7 “Directory Services Architecture for XMPP” ITU-T Rec. H.460.22 (ex H.460.spn) “Security protocol negotiation” 2/ Documents Approved T.120 Implementors' Guide H.323 Implementors' Guide H.248 Sub-series Implementors' Guide H.248 Implementors' Guide Version 2 Supplement 2 to the H-Series “H.248 Sub-Series: Packages Guide Release 9” Supplement 5 to the H-Series “Guidelines for Resource Management of Resources for H.248 RTP Terminations” Technical Paper TP.FNTP “Firewall and NAT Traversal Problems in H.323 Systems” Technical Paper TP.RTM “Roadmap for Telemedicine” 3/ Interim Rapporteur meeting hosted by Huawei Date: 12 (Monday)-16 (Friday) March 2007 Place: Shenzhen, China -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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: Editorial errors in H.460.18
by OKUBO Sakae 01 Nov '06

01 Nov '06

Dear Mr Jones, At 21:54 -0500 06/10/29, Paul E. Jones wrote: >I reviewed all of those proposed changes and agree with them. Will >somebody prepare a contribution for either the IG and/or a >corrigendum? TTC will send an LS to TSB, listing the proposed corrections. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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FW: Output of this meeting for FMC
by simao.campos＠ITU.INT 01 Nov '06

01 Nov '06

Dear experts, a message sent on bahalf of the Sg 19 secretariat, for the Q29/16 experts. Best regards, Simão ________________________________ From: Kurakova, Tatiana Sent: Wednesday, November 01, 2006 5:16 PM To: 'tsg13q6(a)itu.int'; 'tsg19(a)itu.int' Subject: Output of this meeting for FMC On behalf of Felix Zhang, Q.6/13 Rapporteur, I am sending this message to you: For MM/FMC, the following placeholder is used for drafting in this meeting, please get the latest output and have a look, http://ties.itu.int/u/tsg13/sg13/xchange/wp2/q06/20061024%20Geneva/ All the outputs and meeting report will be reviewed and approved in tomorrow afternoon(Nov 2). Best regards, Tatiana Kurakova TSB Engineer for NGN GSI

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Initial workplan of WP2/16
by OKUBO Sakae 31 Oct '06

31 Oct '06

Dear WP2/16 experts, Please see the following table for the initial time allocation to each Question: http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0611_Gen/WP2_plan_061030.pdf This is subject to change depending on the input contributions and documents as well as requirements yet unknown. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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: Editorial errors in H.460.18
by Paul E. Jones 29 Oct '06

29 Oct '06

Mr. Okubo, I reviewed all of those proposed changes and agree with them. Will somebody prepare a contribution for either the IG and/or a corrigendum? Paul > -----Original Message----- > From: OKUBO Sakae [mailto:okubo@MXZ.MESH.NE.JP] > Sent: Friday, October 27, 2006 11:08 AM > To: itu-sg16(a)external.cisco.com > Subject: Editorial errors in H.460.18 > > Dear Q5/16 experts, > > TTC (The Telecommunication Technology Committee, > http://www.ttc.or.jp/e/index.html) / Media Coding WG / Multimedia > System SWG that I am chairing has closely looked at H.460.18 > (09/2005) to make it a TTC standard. In the course of this work, we > have found some editorial errors as annotated in the following > document: > > http://avguest@ftp3.itu.int/av-arch/avc-site/2005-2008/0611_Gen/H.460.18- > ORG_corrected_061026.zip > > Since the figures are not editable, findings are listed after the > figure caption. > > Please review it and we would appreciate if Editor could produce a > list of known corrections in form of Implementors' Guide. > > -- > Best regards, > > OKUBO Sakae > e-mail: okubo(a)aoni.waseda.jp > (<== sokubo(a)waseda.jp, valid until 31 March 2007) > Visiting Professor > Global Information and Telecommunication Institute (GITI) > 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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FW: WORLD e-GOV FORUM 9 DAYS TO GO
by simao.campos＠itu.int 11 Oct '06

11 Oct '06

Dear all, Should anyone in the Paris area be interested to attend, here is the information. Best regards, Simão ________________________________ From: baudouin de Sonis [mailto:baudouin.de-sonis@eu-forum.org] Sent: 10 October 2006 14:52 To: Undisclosed-Recipient:; Subject: WORLD e-GOV FORUM 9 DAYS TO GO Dear all, e-Forum International non for profit Association dedicated to encourage excellence in e-Government in Europe endorses the : World e-Gov Forum World Forum of e-Democracy and e-Administration which is to be held in Issy-les-Moulineaux (Paris - access in subway) from 18 to 20 october 2006. As President of the Programme Committee I would like to emphasise the importance of this event which will become the major one in e-Government and e-Democracy in the years to come, for this reason, I have the pleasure to invite you to the World e-Gov Forum. Please, copy your privilege code below the invitation in the registration form to get a free pass for the three days: WEG-EFR-C-492 (don't miss the hyphens) Your free pass will appear when you reach the third step in the registration process (just before you OK your registration). Registration form here : www.worldegovforum.com <http://www.worldegovforum.com/> The World e-Gov Forum is supported by the United Nations, the World Bank, the UNESCO, the European Comission, and the European Territorial Associations (European Committee of Regions...). Be part of the world's biggest e-Government think tank: talk to academics, researchers, visionaries serving in the local and worldwide arena. Wishing you the best forum! <http://www.worldegovforum.com/index.php?lang=en> Partners Dear Sir or Madam, Less than 9 days to register! The World e-Gov Forum will be a milestone in e-Government history. It will be held in Issy-les-Moulineaux on 18, 19 and 20 October, under the high patronage of M. Jacques CHIRAC, president of the French Republic and His Excellence M. Moo-Hyun ROH, president of the South-Korean Republic. 4 strategic plenary sessions with the exceptional participation of Dr Thomas Boni YAYI, President of the Republic of Benin <http://www.worldegovforum.com/article.php3?id_article=52> 4 cycles, 20 round tables <http://www.worldegovforum.com/rubrique.php3?id_rubrique=6&type=theme> 7 special events: 2 International Territorial Round Tables <http://www.worldegovforum.com/article.php3?id_article=769> Global Cities Dialogue General Meeting: <http://www.worldegovforum.com/article.php3?id_article=769> an international network of 186 mayors committed to promoting the information society Central eGov Agencies Group Meeting <http://www.worldegovforum.com/article.php3?id_article=769> Awards <http://www.worldegovforum.com/article.php3?id_article=769> See all the special events <http://www.worldegovforum.com/article.php3?id_article=769> A meeting place : Zap Solutions Theatre: every 15 minutes, the World e-Gov Forum partners will present e-Gov solutions dedicated to territorial authorities, administrations, and the relationships between the administrations and private actors. The exhibition: 60 solutions e-Gov «Which connected society do we want?» Local and Central Governments, Academics, Experts: Share your experience and your point of view with your peers and participate to an operational step of the Tunis 2005 WSIS (World Summit on the Information Society) road map, to shape the information society. Private actors (e-Gov solutions providers, experts, consulting agencies, developers...): meet e-Government decision makers. <http://www.worldegovforum.com/inscription.php3?id_rubrique=18> Book your World e-Gov Forum pass: <http://www.worldegovforum.com/inscription.php3?id_rubrique=18> Your are invited by Baudouin de Sonis, please, find your priviledge code (including the hyphens): WEG-EFR-C-492 Your free pass will appear when you reach the third step in the registration process (just before you OK your registration). This offer is valid for all new registrations, it is not applicable retroactively. Plan your trip to Paris: <http://www.worldegovforum.com/article.php3?id_article=69> Benefit from our travel discount coupon, and book your hotel now. Looking forward to welcoming you at the World e-Gov Forum. Maud WONG Communication Manager World e-Gov Forum <http://www.worldegovforum.com/inscription.php3?id_rubrique=18> ________________________________ World e-Gov Forum Exploration Trail : Conferences Cycles <http://www.worldegovforum.com/invitation/Invitation/cycles_eng.htm> Special Events <http://www.worldegovforum.com/invitation/Invitation/events.htm> Regional Round Tables <http://www.worldegovforum.com/invitation/Invitation/trt_eng.htm> Next steps : Plenary Sessions 20 Round Tables Informations & Registrations : www.worldegovforum.com <http://www.worldegovforum.com/index.php?lang=en> If you can't read this page, click here <http://www.worldegovforum.com/invitation/Invitation/emailling_offre_eforum.…>

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SG16 meeting (14-24 November 2006) in Geneva
by OKUBO Sakae 11 Oct '06

11 Oct '06

Dear WP2/16 experts, Here is some information for the SG16 meeting to be held next month. 1/ Meeting notice Collective letter 5/16 <http://www.itu.int/md/T05-SG16-COL-0005/en> contains all the information for this meeting. 2/ Participation at the meeting and submission of Contributions Please follow your national procedures. Please note that Contributions from member organizations and Temporary Documents from Rapporteurs or Editors are all managed by TSB; Mr Simao Campos-Neto <simao.campos(a)itu.int> and Ms Isabelle Frost <Isabelle.Frost(a)itu.int>. Where to submit is instructed in Item 5 of the Collective letter. Please note that any Rapporteur or myself is NOT the person to contact for submission of your documents (Contributions and TDs) to this Study Group level meeting. All the meeting documents will become available at <http://www.itu.int/ITU-T/meetingdocs/index.asp> to anyone who has a TIES account. 3/ Voluntary posting of your documents at the avc-site This is a suggestion in addition to the document submission procedures mentioned above. To facilitate advance review of your documents by the experts, you are encouraged to post your documents or their drafts at the web site for experts activities. I have created the following directory for this purpose: http://ftp3.itu.int/av-arch/avc-site/2005-2008/0611_Gen/ To post your materials there, please use the following ftp drop box or e-mail them to me <okubo(a)aoni.waseda.jp>, then I will move them to the above directory: Site: ftp3.itu.int/ User ID: avguest Password: Avguest (Note the uppercase 'A') Directory: avc-site/Incoming -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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T.120 and NAT/firewall traversal
by Patrick Luthi 21 Sep '06

21 Sep '06

Dear experts, During the last Q.1 Rapporteur meeting in Ottawa, Canada (August 29-31, 2006), an interesting discussion took place around future work on T.120 and the possibility for existing or in development NAT/firewall traversal standards to be extended to allow T.120 transport through NATs and firewalls. As Rapporteur, I was asked to send a message out to T.120 and other SG16 experts and solicit contributions on what Q.1 named "iT.120", a project that would take the best of the existing T.120-series and adapt it to allow it to take advantage of todays' IP networks and future NGN networks. Q.1 would also welcome any initiatives from the NAT/FW traversal experts of Q.5 to help address T.120 NAT/FW traversal. The following is an extract of the meeting report: "5.3 T.120 and NAT/firewall traversal The revision of T.120 and T.123 started an interesting discussion on the future of T.120 applications and the problem that T.120 terminals face when placed behind NATs and firewalls. Experts thought that T.120 was a well engineered standards suite and it was unfortunate that the arrival of NATs and firewalls gave web browsers a competitive advantage relaying the use of T.120 applications to internal networks. The group could envision the possibility to start a "iT.120" work item if there was interest and contributions proposing to progress such work. The Q.1 Rapporteur is asked to send a message to appropriate mailing lists to encourage submission of contributions on such new work. Q.1 is also asking Q.5 to consider the incorporation of T.120 NAT/firewall traversal in their existing or planned standards such as H.proxy." I am looking forward to seeing more discussion taking place on the mailing lists (t05sg16avd(a)itu.int, itu-sg16(a)external.cisco.com) and will welcome any contributions on this subject to the upcoming meeting of SG16 (November 14-24, 2006). Please feel free to forward this message to anyone interested in T.120 and data conferencing! Best regards, Patrick Luthi Rapporteur for Q.1/16

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T.120 and NAT/firewall traversal
by Patrick Luthi 21 Sep '06

21 Sep '06

Dear experts, During the last Q.1 Rapporteur meeting in Ottawa, Canada (August 29-31, 2006), an interesting discussion took place around future work on T.120 and the possibility for existing or in development NAT/firewall traversal standards to be extended to allow T.120 transport through NATs and firewalls. As Rapporteur, I was asked to send a message out to T.120 and other SG16 experts and solicit contributions on what Q.1 named "iT.120", a project that would take the best of the existing T.120-series and adapt it to allow it to take advantage of todays' IP networks and future NGN networks. Q.1 would also welcome any initiatives from the NAT/FW traversal experts of Q.5 to help address T.120 NAT/FW traversal. The following is an extract of the meeting report: "5.3 T.120 and NAT/firewall traversal The revision of T.120 and T.123 started an interesting discussion on the future of T.120 applications and the problem that T.120 terminals face when placed behind NATs and firewalls. Experts thought that T.120 was a well engineered standards suite and it was unfortunate that the arrival of NATs and firewalls gave web browsers a competitive advantage relaying the use of T.120 applications to internal networks. The group could envision the possibility to start a "iT.120" work item if there was interest and contributions proposing to progress such work. The Q.1 Rapporteur is asked to send a message to appropriate mailing lists to encourage submission of contributions on such new work. Q.1 is also asking Q.5 to consider the incorporation of T.120 NAT/firewall traversal in their existing or planned standards such as H.proxy." I am looking forward to seeing more discussion taking place on the mailing lists (t05sg16avd(a)itu.int, itu-sg16(a)external.cisco.com) and will welcome any contributions on this subject to the upcoming meeting of SG16 (November 14-24, 2006). Please feel free to forward this message to anyone interested in T.120 and data conferencing! Best regards, Patrick Luthi Rapporteur for Q.1/16

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Ottawa meeting reports
by OKUBO Sakae 13 Sep '06

13 Sep '06

Dear WP2/16 experts, The integrated report of the Ottawa meeting of Questions 2, 3, 4, 5, 21, 22, 24, 25 and 29/16 is now available at the following place: http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/AVD-2951.zip Please note that Q1/16 report is stored in a separate place: http://ftp3.itu.int/av-arch/lbc-site/0608_Ottawa/q1f13r1.doc -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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Outcome of the Ottawa meeting (28 August -1 September)
by OKUBO Sakae 03 Sep '06

03 Sep '06

Dear WP2/16 experts, We finished another productive Rapporteur meeting last Friday that was held in Ottawa at the kind invitation of Nortel. Achievements of this meeting are recorded in the following reports of respective Questions: Q1 http://ftp3.itu.int/av-arch/lbc-site/0608_Ottawa/q1f13r1.doc Q2 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-12.zip Q3 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-13a.zip Q4 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-14.zip Q5 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-15.zip Q21 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-16a.zip Q22 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-17.zip Q24 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-18.zip Q25 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-19a.zip Q29 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-20a.zip General http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-62.zip As to the Q2,3,4,5,21,22,24,25,29 group meeting, I will integrate them into AVD-2951 in a week time. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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Outcome of the Ottawa meeting (28 August -1 September)
by OKUBO Sakae 03 Sep '06

03 Sep '06

Dear WP2/16 experts, We finished another productive Rapporteur meeting last Friday that was held in Ottawa at the kind invitation of Nortel. Achievements of this meeting are recorded in the following reports of respective Questions: Q1 http://ftp3.itu.int/av-arch/lbc-site/0608_Ottawa/q1f13r1.doc Q2 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-12.zip Q3 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-13a.zip Q4 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-14.zip Q5 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-15.zip Q21 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-16a.zip Q22 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-17.zip Q24 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-18.zip Q25 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-19a.zip Q29 http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-20a.zip General http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/TD-62.zip As to the Q2,3,4,5,21,22,24,25,29 group meeting, I will integrate them into AVD-2951 in a week time. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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Q1/16 meeting has concluded: report and documents
by Patrick Luthi 31 Aug '06

31 Aug '06

Dear experts, The Rapporteur meeting of Q.1/16 has concluded. The meeting report can be found here: http://ftp3.itu.int/av-arch/lbc-site/0608_Ottawa/q1f13r1.doc The final list of documents is available here: http://ftp3.itu.ch/av-arch/lbc-site/0608_Ottawa/q1f00r1.doc Best regards, Patrick Luthi Rapporteur for Q.1/16

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RE: Document number allocation request
by Paul E. Jones 26 Aug '06

26 Aug '06

Ishikawa-san, I have not experienced any problems accessing the server: the performance has been good. So, it must be a problem with the connection from Japan to Geneva. (This server is owned and operated by the ITU in Geneva, Switzerland.) I tested the server just now and downloaded a file at 1.6Mbps. Unfortunately, I'm not sure what to suggest to you. Paul > -----Original Message----- > From: ishikawa [mailto:chiaki.ishikawa@ubin.jp] > Sent: Friday, August 25, 2006 6:48 AM > To: Paul E. Jones > Cc: youichi.takashima(a)ubin.jp; 'Noboru Koshizuka'; itu- > sg16(a)external.cisco.com; ishikawa > Subject: Re: Document number allocation request > > Dear Paul E. Jones, > > I am not sure to whom I should report this network problem, but > thought you might be the first choice for me. > > The ftp site which we are using, ftp3.itu.int > seems to have a very narrow bandwidth to the outside, for example, Japan. > > I have no idea why it is so slow, but I monitor the transfer rate > dropping down from 1.5 Kb/sec to almost nil when I tried to > download the mentioned file today at aroun 19:45 JST (9 hours ahead of > UTC). > > This may be a temporary anomaly, but given the slowness I observed the > other > day, this may be a symptom from long-lingerling underlying problem. > > Or it may be that the bandwidth is shared by MANY connections. I have no > idea. > > But given this transfer rate, I feel that some participants who try to > download the presentation files in the one week window immediately prior > to > the meetings may get frustrated. > > Just wanted to share my finding of this narrow bandwidth problem. > > Looking forward to seeing you in Ottawa. > (My colleagues and I leave for Canada this coming Sunday [Japan Standard > Time].) > > Sincerely > Chiaki Ishikawa > > Paul E. Jones wrote: > > Ishikawa-san, > > > > I have uploaded the document as AVD-2935a.zip. > > > > I accepted all of the changes appearing in revision marks. I edited the > > contact footer so that it only appears on the first page. I also edited > the > > contact lines so that the word "Contact" does not appear on each line. > > > > Paul > > > >> -----Original Message----- > >> From: Ishikawa, Chiaki [mailto:chiaki.ishikawa@ubin.jp] > >> Sent: Monday, August 21, 2006 5:49 PM > >> To: Paul E. Jones > >> Cc: youichi.takashima(a)ubin.jp; 'Noboru Koshizuka'; 'Ishikawa, Chiaki'; > >> itu-sg16(a)external.cisco.com > >> Subject: Re: Document number allocation request > >> > >> > >> Dear Paul E. Jones, > >> > >> We have made a few last minute changes (fixing typos, misspells, etc.) > >> to the document which was submitted a few hours ago. > >> I uploaded a file to the ftp site. > >> So please use the latest file uploaded to the ftp site. > >> (We may still make another change or two. Catching English mistakes > >> is difficult for non-native English speakers.) > >> > >> Thank you in advance for your attention. > >> > >> Sincerely, > >> Chiaki Ishikawa > >> > >> Paul E. Jones wrote: > >>> Takashima-san, > >>> > >>> Please use AVD-2935. > >>> > >>> Thanks! > >>> Paul > >>> > >>> > >>>> -----Original Message----- > >>>> From: youichi.takashima(a)ubin.jp [mailto:youichi.takashima@ubin.jp] > >>>> Sent: Friday, August 18, 2006 4:33 AM > >>>> To: Paul Jones > >>>> Cc: Noboru Koshizuka; Ishikawa, Chiaki > >>>> Subject: Document number allocation request > >>>> > >>>> Dear Paul, > >>>> > >>>> Could you allocate a document number to the following contribution? > >>>> > >>>> Source: YRP Ubiquitous Networking Laboratory > >>>> Title: Analysis of Information Delivery Applications using Networked > ID > >>>> Question: 22 > >>>> > >>>> This is a "proposal" document. > >>>> > >>>> Best regards, > >>>> --------------------------------------------------------------------- > - > >>>> Youichi TAKASHIMA > >>>> YRP Ubiquitous Networking Laboratory > >>>> Phone +81 3 5437 2270 > >>>> Facsimile +81 3 5437 2329 > >>>> 2-20-1 Nishi-Gotanda, Shinagawa-ku, Tokyo 141-0031 JAPAN > >>>> > >>>> > > > > > > > > > >

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Re: Document number allocation request
by ishikawa 25 Aug '06

25 Aug '06

Dear Paul E. Jones, I am not sure to whom I should report this network problem, but thought you might be the first choice for me. The ftp site which we are using, ftp3.itu.int seems to have a very narrow bandwidth to the outside, for example, Japan. I have no idea why it is so slow, but I monitor the transfer rate dropping down from 1.5 Kb/sec to almost nil when I tried to download the mentioned file today at aroun 19:45 JST (9 hours ahead of UTC). This may be a temporary anomaly, but given the slowness I observed the other day, this may be a symptom from long-lingerling underlying problem. Or it may be that the bandwidth is shared by MANY connections. I have no idea. But given this transfer rate, I feel that some participants who try to download the presentation files in the one week window immediately prior to the meetings may get frustrated. Just wanted to share my finding of this narrow bandwidth problem. Looking forward to seeing you in Ottawa. (My colleagues and I leave for Canada this coming Sunday [Japan Standard Time].) Sincerely Chiaki Ishikawa Paul E. Jones wrote: > Ishikawa-san, > > I have uploaded the document as AVD-2935a.zip. > > I accepted all of the changes appearing in revision marks. I edited the > contact footer so that it only appears on the first page. I also edited the > contact lines so that the word "Contact" does not appear on each line. > > Paul > >> -----Original Message----- >> From: Ishikawa, Chiaki [mailto:chiaki.ishikawa@ubin.jp] >> Sent: Monday, August 21, 2006 5:49 PM >> To: Paul E. Jones >> Cc: youichi.takashima(a)ubin.jp; 'Noboru Koshizuka'; 'Ishikawa, Chiaki'; >> itu-sg16(a)external.cisco.com >> Subject: Re: Document number allocation request >> >> >> Dear Paul E. Jones, >> >> We have made a few last minute changes (fixing typos, misspells, etc.) >> to the document which was submitted a few hours ago. >> I uploaded a file to the ftp site. >> So please use the latest file uploaded to the ftp site. >> (We may still make another change or two. Catching English mistakes >> is difficult for non-native English speakers.) >> >> Thank you in advance for your attention. >> >> Sincerely, >> Chiaki Ishikawa >> >> Paul E. Jones wrote: >>> Takashima-san, >>> >>> Please use AVD-2935. >>> >>> Thanks! >>> Paul >>> >>> >>>> -----Original Message----- >>>> From: youichi.takashima(a)ubin.jp [mailto:youichi.takashima@ubin.jp] >>>> Sent: Friday, August 18, 2006 4:33 AM >>>> To: Paul Jones >>>> Cc: Noboru Koshizuka; Ishikawa, Chiaki >>>> Subject: Document number allocation request >>>> >>>> Dear Paul, >>>> >>>> Could you allocate a document number to the following contribution? >>>> >>>> Source: YRP Ubiquitous Networking Laboratory >>>> Title: Analysis of Information Delivery Applications using Networked ID >>>> Question: 22 >>>> >>>> This is a "proposal" document. >>>> >>>> Best regards, >>>> ---------------------------------------------------------------------- >>>> Youichi TAKASHIMA >>>> YRP Ubiquitous Networking Laboratory >>>> Phone +81 3 5437 2270 >>>> Facsimile +81 3 5437 2329 >>>> 2-20-1 Nishi-Gotanda, Shinagawa-ku, Tokyo 141-0031 JAPAN >>>> >>>> > > > >

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RE: AVD-2911a and AVD-2913a
by Paul E. Jones 24 Aug '06

24 Aug '06

Thanks! The revised documents will be posted shortly. Paul > -----Original Message----- > From: OKUBO Sakae [mailto:okubo@mxz.mesh.ne.jp] > Sent: Thursday, August 24, 2006 4:48 AM > To: Paul E. Jones > Cc: itu-sg16(a)external.cisco.com > Subject: AVD-2911a and AVD-2913a > > Dear Paul, > > I have modified AVD-2911 and AVD-2913 as uploaded to the /Incoming > directory. These are referring to the liaison statements that TSB has > recently made available and you have registered as AVD-documents. The > substance is not changed. > > -- > Best regards, > > OKUBO Sakae > e-mail: okubo(a)aoni.waseda.jp > (<== sokubo(a)waseda.jp, valid until 31 March 2007) > Visiting Professor > Global Information and Telecommunication Institute (GITI) > 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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AVD-2911a and AVD-2913a
by OKUBO Sakae 24 Aug '06

24 Aug '06

Dear Paul, I have modified AVD-2911 and AVD-2913 as uploaded to the /Incoming directory. These are referring to the liaison statements that TSB has recently made available and you have registered as AVD-documents. The substance is not changed. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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: Question on a NAT traversal requirement
by Paul E. Jones 23 Aug '06

23 Aug '06

Roni, This is a requirement statement, not a statement tied to a particular solution. Interpreting the words, I think what I said would be correct irrespective of any particular solution. However, I delved into H.323v1 and H.323v2 discussions, as I think any person's immediate question might be "why not v1 or v2". You said in a separate reply that using an ALG or a proxy solution, even H.323v1 might be supported. That's entirely right, which makes the requirement even more confusing. This requirement just says that, whatever we do to address NAT/FW issues, we need to ensure it works H.323v3 or higher and it's OK if the final solution will not work with H.323v1 or v2. Paul > -----Original Message----- > From: Even, Roni [mailto:roni.even@polycom.co.il] > Sent: Wednesday, August 23, 2006 2:45 AM > To: Paul E. Jones; OKUBO Sakae; itu-sg16(a)external.cisco.com > Subject: RE: Question on a NAT traversal requirement > > Paul, > I would like to emphasis that this is true only for Nat traversal based > on H.460 (17, 18, 19) and not to other means of NAT traversal > Roni Even > > > -----Original Message----- > > From: Paul E. Jones [mailto:paulej@PACKETIZER.COM] > > Sent: Wednesday, August 23, 2006 7:18 AM > > To: 'OKUBO Sakae'; itu-sg16(a)external.cisco.com > > Subject: RE: Question on a NAT traversal requirement > > > > Mr. Okubo, > > > > Given this wording, I would say the answer to your question is "it MAY > > work > > with H.323v1 or H.323v2, but SHALL work with H.323v3, v4, v5, v6, ..." > > > > In reality, I don't believe v1 systems can be supported, since H.323v1 > > systems were required to use H.245v2. H.323v2 lifted this > restriction, so > > devices could implement later versions of H.245 approved independently > of > > H.323. > > > > Paul > > > > > -----Original Message----- > > > From: OKUBO Sakae [mailto:okubo@MXZ.MESH.NE.JP] > > > Sent: Tuesday, August 22, 2006 4:10 AM > > > To: itu-sg16(a)external.cisco.com > > > Subject: Question on a NAT traversal requirement > > > > > > Dear NAT traversal experts, > > > > > > TTC (The Telecommunication Technology Committee) is now working on > > > Technical Paper "Requirements for Network Address Translator and > > > Firewall Traversal of H.323 Multimedia Systems" to convert it to a > > > Technical Report in Japanese language. > > > > > > I have a question on how to interpret the following part: > > > > > > ---------- > > > 9.3 Requirements on Signalling and Media Streams > > > b) NAT traversal mechanisms for H.323 multimedia systems shall > > > support no less than ITU-T H.323v3, H.245v7, H.225.0v4, and H.235v3. > > > All later versions of H.323, H.245, H.225.0 and H.235 may be > > > supported. > > > ---------- > > > > > > Take an example of H.323 that has now v6. Which of the following > > > statements are true? > > > > > > NAT traversal > > > > > > 1/ shall not support v1 or v2. > > > 2/ may support v1 or v2. > > > 3/ shall support v3. > > > 4/ shall support v3 and in addition may support any combinations of > > > v4, v5 and v6. > > > 5/ shall support v3 and may support v4, or (v4 and v5), or (v4, v5 > and > > > v6). > > > > > > In other words, NAT traversal with the following support conforms to > > > this requirement: > > > > > > a/ v3 > > > b/ v4 > > > c/ v5 > > > d/ v6 > > > e/ v3, v4 > > > f/ v3, v5 > > > g/ v3, v6 > > > h/ v3, v4, v5 > > > i/ v3, v4, v5, v6 > > > j/ v4, v5 > > > k/ v4, v6 > > > l/ v4, v5, v6 > > > m/ v5, v6 > > > > > > -- > > > Best regards, > > > > > > OKUBO Sakae > > > e-mail: okubo(a)aoni.waseda.jp > > > (<== sokubo(a)waseda.jp, valid until 31 March 2007) > > > Visiting Professor > > > Global Information and Telecommunication Institute (GITI) > > > 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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Meeting documents posted
by Paul E. Jones 23 Aug '06

23 Aug '06

Dear Experts, The documents for the meeting next week have all been posted. The current list of document is here: http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/0608_Ott.html I will update that as late arriving documents appear and with any additional liaison statements Rapporteur's request that I post. Before the end of the week, I will publish the list of documents as TD-02, but the above HTML file contains the same contents. If you see any errors in titles, references, etc., please let me know and I will make the necessary changes. Thanks! Paul

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RE: Question on a NAT traversal requirement
by OKUBO Sakae 23 Aug '06

23 Aug '06

Dear all who kindly responded to my question, Now I understand the required minimum versions are coming from the expected use of H.225.0 generic extensibility framework and H.245 generic parameter in the NAT traversal mechanism. ---------- 9.3 Requirements on Signalling and Media Streams b) NAT traversal mechanisms for H.323 multimedia systems shall support no less than ITU-T H.323v3, H.245v7, H.225.0v4, and H.235v3. All later versions of H.323, H.245, H.225.0 and H.235 may be supported. ---------- My original difficulty was in the English expression "shall support no less than version n." It is negative to "less than n" hence equivalent to "n or higher." Furthermore, I understand that version n is a super-set of previous version (n-1), at least in principle ..., in our standards, meaning that version n entity can interwork with any lower version entity. Then the second sentence "may support any later version" would be overlapping with the first sentence. In conclusion, a NAT traversal mechanism with the following H.323 support conforms to this requirement (not mentioning H.245, H.225.0. H.235 for simplicity): a/ v3 b/ v4 c/ v5 d/ v6 e/ v3, v4 ==> equivalent to b/ f/ v3, v5 ==> equivalent to c/ g/ v3, v6 ==> equivalent to d/ h/ v3, v4, v5 ==> equivalent to c/ i/ v3, v4, v5, v6 ==> equivalent to d/ j/ v4, v5 ==> equivalent to c/ k/ v4, v6 ==> equivalent to d/ l/ v4, v5, v6 ==> equivalent to d/ m/ v5, v6 ==> equivalent to d/ I hope I am correct. -- Best regards, OKUBO Sakae e-mail: okubo(a)aoni.waseda.jp (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting Professor Global Information and Telecommunication Institute (GITI) 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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Documents for the next week meeting of Q.1
by Patrick Luthi 23 Aug '06

23 Aug '06

Dear experts, Almost all meeting documents have been posted: http://ftp3.itu.int/av-arch/lbc-site/0608_Ottawa ftp://ftp3.itu.int/lbc-site/0608_Ottawa user: avguest, password: Avguest The list of documents is available here: http://ftp3.itu.ch/av-arch/lbc-site/0608_Ottawa/q1f00.doc Best regards, Patrick Luthi Rapporteur for Q.1/16

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RE: Question on a NAT traversal requirement
by Paul E. Jones 23 Aug '06

23 Aug '06

Mr. Okubo, Given this wording, I would say the answer to your question is "it MAY work with H.323v1 or H.323v2, but SHALL work with H.323v3, v4, v5, v6, ..." In reality, I don't believe v1 systems can be supported, since H.323v1 systems were required to use H.245v2. H.323v2 lifted this restriction, so devices could implement later versions of H.245 approved independently of H.323. Paul > -----Original Message----- > From: OKUBO Sakae [mailto:okubo@MXZ.MESH.NE.JP] > Sent: Tuesday, August 22, 2006 4:10 AM > To: itu-sg16(a)external.cisco.com > Subject: Question on a NAT traversal requirement > > Dear NAT traversal experts, > > TTC (The Telecommunication Technology Committee) is now working on > Technical Paper "Requirements for Network Address Translator and > Firewall Traversal of H.323 Multimedia Systems" to convert it to a > Technical Report in Japanese language. > > I have a question on how to interpret the following part: > > ---------- > 9.3 Requirements on Signalling and Media Streams > b) NAT traversal mechanisms for H.323 multimedia systems shall > support no less than ITU-T H.323v3, H.245v7, H.225.0v4, and H.235v3. > All later versions of H.323, H.245, H.225.0 and H.235 may be > supported. > ---------- > > Take an example of H.323 that has now v6. Which of the following > statements are true? > > NAT traversal > > 1/ shall not support v1 or v2. > 2/ may support v1 or v2. > 3/ shall support v3. > 4/ shall support v3 and in addition may support any combinations of > v4, v5 and v6. > 5/ shall support v3 and may support v4, or (v4 and v5), or (v4, v5 and > v6). > > In other words, NAT traversal with the following support conforms to > this requirement: > > a/ v3 > b/ v4 > c/ v5 > d/ v6 > e/ v3, v4 > f/ v3, v5 > g/ v3, v6 > h/ v3, v4, v5 > i/ v3, v4, v5, v6 > j/ v4, v5 > k/ v4, v6 > l/ v4, v5, v6 > m/ v5, v6 > > -- > Best regards, > > OKUBO Sakae > e-mail: okubo(a)aoni.waseda.jp > (<== sokubo(a)waseda.jp, valid until 31 March 2007) > Visiting Professor > Global Information and Telecommunication Institute (GITI) > 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: Question on a NAT traversal requirement
by Even, Roni 23 Aug '06

23 Aug '06

Hi, If you read my response you will see that this requirements comes are there since the requirement when written took into account that one solution will be based on the H.323 extension mechanisms that require those H.323, H.225.0 and H.245 versions. So systems that are H.323 V2 will not be able to support H.460.18 and H.460.19. Possibly it is that to implement H.40.18 and H.460.19 you need those H.323 versions and above. Like I mentioned if you use SBC or ALGs then this is not required and the SBC and ALG will also support H.323 V2 and V1(if there are) product. Roni > -----Original Message----- > From: Kevin Boyle [mailto:kboyle@nortel.com] > Sent: Tuesday, August 22, 2006 6:56 PM > To: cathy jiang > Cc: itu-sg16(a)external.cisco.com > Subject: RE: Question on a NAT traversal requirement > > From my reading of this, the system requires at least H.323v3. H.323v1 > and v2 are inadequate. > > Note that the other specs are subject to different version requirements: > H.245 must be at least v7, for example. > > Kevin > > -----Original Message----- > From: cathy jiang [mailto:jiangxiaolin@mail.ritt.com.cn] > Sent: Tuesday, August 22, 2006 5:19 AM > To: OKUBO Sakae > Subject: RE: Question on a NAT traversal requirement > > Mr.Okubo, > > From this sentence you quoted, it means that NAT/FW traversal schemes > should consider at least V3 and also should have the abilities to adapt > to the later versions, i.e. v4,v5 and v6. There might have some legacy > networks deployed with h.323 v1/v2 which should be taken into > cosideration of NAT/FW traversal.But it was not implied here that NAT/FW > traversal MUST support v1/v2. > > Best > Xiaolin > > > > ======= At 2006-08-22, 16:25:30 you wrote: ======= > > >Mr. Okubo, > > > >This statement is there since the in order to allow solutions that will > > >require the extensibility framework and generic parameters defined only > > >from those versions. > >This means that any version from this version and above will work. It > >also means that NAT traversal may work with older systems using other > >NAT traversal mechanisms like Session Border Controllers or ALGs > > > >Roni Even > > > >> -----Original Message----- > >> From: OKUBO Sakae [mailto:okubo@MXZ.MESH.NE.JP] > >> Sent: Tuesday, August 22, 2006 11:10 AM > >> To: itu-sg16(a)external.cisco.com > >> Subject: Question on a NAT traversal requirement > >> > >> Dear NAT traversal experts, > >> > >> TTC (The Telecommunication Technology Committee) is now working on > >> Technical Paper "Requirements for Network Address Translator and > >> Firewall Traversal of H.323 Multimedia Systems" to convert it to a > >> Technical Report in Japanese language. > >> > >> I have a question on how to interpret the following part: > >> > >> ---------- > >> 9.3 Requirements on Signalling and Media Streams > >> b) NAT traversal mechanisms for H.323 multimedia systems shall > >> support no less than ITU-T H.323v3, H.245v7, H.225.0v4, and H.235v3. > >> All later versions of H.323, H.245, H.225.0 and H.235 may be > >> supported. > >> ---------- > >> > >> Take an example of H.323 that has now v6. Which of the following > >> statements are true? > >> > >> NAT traversal > >> > >> 1/ shall not support v1 or v2. > >> 2/ may support v1 or v2. > >> 3/ shall support v3. > >> 4/ shall support v3 and in addition may support any combinations of > >> v4, v5 and v6. > >> 5/ shall support v3 and may support v4, or (v4 and v5), or (v4, v5 > >> and v6). > >> > >> In other words, NAT traversal with the following support conforms to > >> this requirement: > >> > >> a/ v3 > >> b/ v4 > >> c/ v5 > >> d/ v6 > >> e/ v3, v4 > >> f/ v3, v5 > >> g/ v3, v6 > >> h/ v3, v4, v5 > >> i/ v3, v4, v5, v6 > >> j/ v4, v5 > >> k/ v4, v6 > >> l/ v4, v5, v6 > >> m/ v5, v6 > >> > >> -- > >> Best regards, > >> > >> OKUBO Sakae > >> e-mail: okubo(a)aoni.waseda.jp > >> (<== sokubo(a)waseda.jp, valid until 31 March 2007) Visiting > >> Professor Global Information and Telecommunication Institute (GITI) > >> 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 > >> ****************************************************************** > >. > > = = = = = = = = = = = = = = = = = = = = > > cathy jiang > jiangxiaolin(a)mail.ritt.com.cn > 2006-08-22

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