June 2000 - sg16-avd - lists.packetizer.com

H.450-3
by Wolfgang Bandow 05 Jun '00

05 Jun '00

Hello H.450-Experts! I've got a question concerning the activation of call forwarding in cases when the served endpoint shall be represented by a gatekeeper. The standard distinguishes between the activating and the served endpoint but does not give sufficient information for the case that activating and served endpoint are both the same. Is there any message flow when activating call forwarding by the served user (locally)? Is the corresponding gatekeeper somehow informed about this activation? Thanks a lot for your reply. Regards, Wolfgang Bandow CT-B / Berlin

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ASN.1 Changes in H.225.0v3
by Paul E. Jones 05 Jun '00

05 Jun '00

Folks, While talking with people recently about some features in H.323 version 3, I discovered that a couple of fields in H.225.0v3 contained an error. Specifically: o "useAnnexECallSignalling" in RCF was supposed to be OPTIONAL o "useAnnexECallSignalling" in ACF was supposed to be OPTIONAL o "supportsAnnexECallSignalling" in LCF was supposed to be OPTIONAL The field descriptions in the H.225.0 document correctly describe the fields as if they were OPTIONAL, which followed the agreed text from TD-23 in the Monterey meeting. In order to correct these errors, I brought a contribution to the Osaka meeting proposing to make these three fields OPTIONAL by making a correction to the Implementers Guide. Participants at the meeting were in agreement to make these corrections, especially since H.225.0v3 has not been published yet. However, since a change such as this will break backward compatibility anyway, the attendees decided to go beyond simply making these 3 small editorial corrections. Instead, a proposal was made to replace these fields with new fields that have an expanded scope. It will now be possible to provide "AlternateTransportAddresses" for various transports: Annex E, SCTP, or something else (currently, only Annex E is defined). In addition, the Gatekeeper, knowing what is supported, may specify which transport an endpoint shall use. I did not object to this proposed change because it looks reasonable and, given that H.225.0v3 is so new, I did not expect it to have a serious impact. However, I have been made aware that a few vendors have or are in the process of implementing H.323v3. This means that we must solidify this ASN.1 change. The participants in Osaka agreed to the proposed changes (attached as a Word document). I believe they are reasonable, but we cannot wait until November, which is when the official vote will be made by the various world governments, to approve those fields: by that time, H.225.0v3 will be published and will have been in a Decided state for 14 months! So, I want to hear people's comments: are all of the vendors comfortable with these changes? I do not believe that any vendor would be put in an uncomfortable position today, so I want to get agreement that we will accept these ASN.1 changes now. I do not want to see a contribution in the November meeting proposing to change these structures in any way-- hopefully what we agreed to in Osaka is acceptable to everybody and we will have no objections. If there are objections, I want to hear them now. It will be too late in November, based on what I have been hearing from various companies. Please give your comments to me and/or post them publicly here. Best Regards, Paul E. Jones Editor, H.323 and the H.323 Implementers Guide

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Conference: Implementing H.323
by Paul E. Jones 04 Jun '00

04 Jun '00

Folks, This may be old news to some, but I know that many people have not heard that Upper Side will be hosting a conference called "Implementing H.323" in Paris October 10-13, 2000. If you would like to attend as a speaker, they are now accepting proposals (a list of suggested topics are in their web page). The deadline for proposals is June 15, 2000. Here's the official web site: http://www.upperside.fr/bah323.htm Best Regards, Paul ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For help on this mail list, send "HELP ITU-SG16" in a message to listserv(a)mailbag.intel.com

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Re: On TD26 - Fast TCS and M/S negotiation in H.323v4
by Francois Audet 04 Jun '00

04 Jun '00

Guys, I was travelling, so I couldn't respond to this thread earlier. I think I like this idea of the earlyH245Control containing the first H.245 message (i.e., a TCS), in the SETUP message, instead of the h245Control. You have my blessings. ;^)

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H.323v4 and the Implementers Guide
by Paul E. Jones 04 Jun '00

04 Jun '00

Folks, I know that a number of you are eagerly awaiting for the H.323v4 and IG draft documents. Unfortunately, I was traveling for a week and then busy with a project at work, so I have had little time to get those documents updated. However, I will be devoting more time to those documents this week, so hopefully I can get them out for review early next week. I apologize for the delay. Best Regards, Paul ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For help on this mail list, send "HELP ITU-SG16" in a message to listserv(a)mailbag.intel.com

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Re: On TD26 - Fast TCS and M/S negotiation in H.323v4
by Francois Audet 04 Jun '00

04 Jun '00

> Paul, > > We agreed at the Osaka meeting to allow a SETUP to contain both the > fastStart and h245Control, but it has not been officially > approved by the > ITU. > > As it stands right now, I don't think I can agree to include > it in H.323v4 > on the grounds that it breaks backward compatibility with > V2-- I just don't > see a clean solution here. It doesn't "break" anything. The call will still proceed. > I'm opening to hearing more suggestions, but as you pointed > out, there are > two issues: > 1) H.323v2 states explicitly that it is illegal There are a lot of things that changed from v2 to v4. That's the role of versions. > 2) There is no way to know what version to destination EP is before > sending this illegal message That would apply to any single change that we do on H.225.0 and H.245.

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Re: H.248 change document
by Sakae OKUBO 04 Jun '00

04 Jun '00

Dear Mr. Fortinsky, >You have a small "copy and paste" error in your message about the H.248 >document. You specify both documents (the one with change marks and the >clean one) as having the same name: H248-for-decision-wcm.zip > >The clean document should be called H248-for-decision-ncm.zip Thank you for your advice. The list now reads: H248-for-decision-changes-wsynt.zip H248-for-decision-wcm.zip H248-for-decision-ncm.zip Using this opportunity, let me correct the list of TDs for debriefing the Osaka meeting: TD-59a General ==> TD-49a TD-22c Q13 TD-21b Q14 The final list of participants is in TD-00. I am now belatedly integrating these and other materials into APC-1871. Best regards, Sakae OKUBO *********************************************************** 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 (to be transferred) +81 3 3204 8194 (direct) Fax: +81 3 5287 7287 e-mail: okubo(a)giti.or.jp *********************************************************** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For help on this mail list, send "HELP ITU-SG16" in a message to listserv(a)mailbag.intel.com

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H.450.9 draft white updated
by Klaghofer Karl ICN SIB NL D1 04 Jun '00

04 Jun '00

I have uploaded the updated draft White document for H.450.9 (i.e. an updated version of TD-55 Osaka) to the pictel incoming directory for your review. ftp://standard.pictel.com/avc-site/Incoming/h4509WhiteDraft.zip Compared to TD-55, I have made minor modifications related to H.323 references as requested by meeting participants in the sections Summary 9.2.8, and 9.3.8. Please note that I will send the document to Mr. Bigi already on June 15 for translation (as agreed in Osaka). So, if you have any comments please provide them to me during the next two weeks. Regards, Karl Klaghofer Siemens > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > For help on this mail list, send "HELP ITU-SG16" in a message to > listserv(a)mailbag.intel.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For help on this mail list, send "HELP ITU-SG16" in a message to listserv(a)mailbag.intel.com

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H.248 change document
by Glen Freundlich 04 Jun '00

04 Jun '00

Greetings, I have placed 3 files in the Incoming directory of the pictel ftp site: H248-for-decision-changes-wsynt.zip - The change document showing the specific modifications to the determined H.248 as finalized at the Osaka meeting. H248-for-decision-wcm.zip - The entire H.248 document with changes to the determined document highlighted. H248-for-decision-wcm.zip - H.248 with all changes accepted (the clean document). Regards, Glen -- Glen Freundlich ggf(a)lucent.com Lucent Technologies office: +1 303 538 2899 11900 N. Pecos fax: +1 303 538 3907 Westminster, Colorado 80234 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For help on this mail list, send "HELP ITU-SG16" in a message to listserv(a)mailbag.intel.com

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03 Jun '00

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