ITU - Telecommunications Standardization Sector     Document: Q11-A-59
STUDY GROUP 16                                                Q15-A-53
Circuit-Switched Network Systems Experts Group    Filename: q11a59.txt
Video Coding Experts Group                                  q15a53.txt
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Portland, 24-27 June 1997

Question: Q.11/16, Q.15/16

Source:   GCL, Sakae Okubo (via Tom Geary)

Title:    H.263+ in H.320

Purpose:  Information

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Mr. Tom Geary
Rockwell
c/o The Benson Hotel      FAX: +1 503 226 4603
ITU-T LBC Meeting


Dear Mr. Geary,

Thank you for your telefaxing me Q11-A-31 (VTEL) to San Diego.

I have no particular comments, but have the following general
comments to this contribution with my understanding that the
profiling of H.263+ is discussed this week in Portland (at least
Japan has submitted a relevant contribution on this issue):

1) The discussion provided in Q11-A-31 seems to me reasonable

2) Any H.263+ profile for H.320 should be a subset of the
   profiles defined for general H.263+ application to H.324, H.323,
   and other H.245 based systems.

3) When choosing profiles for H.320, the H.246 gateway
   implementation should be taken into account.  Namely mapping
   between H.263+ related capabilities and commands in H.242 and
   those in H.245 should be straightforward.

Best regards,

Sakae Okubo (Mr.)

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Graphics Communication Laboratories   Phone: +81 3 5351 0181
6F ANNEX TOSHIN BLDG.                 Fax:   +81 3 5351 0185
4-36-19 Yoyogi, Shibuya-ku, Tokyo     e-mail: okubo@gctech.co.jp
151 Japan
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[transcription from fax text by Gary Sullivan 7/1/97]