Paul,

The only change to the syntax for V6 that I am aware of is the change given below (from TD69/PLEN of Santiago), where ** is used to label additions.

MediaTransportType ::=CHOICE { ip-UDP NULL, ip-TCP NULL, atm-AAL5-UNIDIR NULL, -- virtual circuits used as unidirectional atm-AAL5-BIDIR NULL, -- virtual circuits used as bidirectional ..., ** atm-AAL5-compressed SEQUENCE ** { ** variable-delta BOOLEAN , ** ... ** }

}

At the Berlin meeting there were discussion regarding the T.38 fax codepoints - we had received a liaison from SG8 that showed that there were differences between T.38 Annex B and H.245 V5. We replied to them suggesting a syntax addition to H.245 (V6) to allow the additional fields in T.38 Annex B to be signalled. I am assuming that we will not include these changes in H.245 until we have received a response from SG8.

I have not made a new syntax - it did not seem worth the effort - and I am not aware of anyone else doing so.

Best regards

Mike

********************************************************************** * Mike Nilsson Tel: +44 1473 645413 * * Applications Technology Group Fax: +44 1473 645011 * * Internet and Multimedia Applications Email: mike.nilsson@bt.com * * BT Advanced Communications Technology Centre [B54 Room 94] * * Adastral Park * * Martlesham Heath * * Ipswich IP5 3RE * * UK * **********************************************************************

-----Original Message----- From: Paul Long [SMTP:Plong@SMITHMICRO.COM] Sent: Thursday, August 12, 1999 5:04 AM To: ITU-SG16@MAILBAG.INTEL.COM Subject: H.245v6 ASN.1 tree?

Has a complete ASN.1 syntax been put together for H.245v6, the version used by H.323v3? If so, where I can find it online? I guess it would be H.245v5 with the Santiago TDs applied. I can combine them on my own, but I'd like something with which to corroborate my result.

Paul Long Smith Micro Software, Inc.