Dear colleagues

Please accept my apologies for my delay in uploading APC 1462 ("Guidelines for support of non-ITU voice codecs in ITU-T Recommendations") to the PIctureTel FTP incoming AVC directory. I was absent from office most of yesterday, when the internal clearance of the document was concluded. The file can be retrieved from: ftp://standards.pictel.com/avc-site/Incoming/apc1462.doc (before it is moved to the 9811_Tor directory).

The summary of the document is attached for your reference.

Best regards, Simao Campos-Neto COMSAT

---------------- Summary:

This contribution addresses the recent requests for added support of non-ITU voice codecs in ITU-T H-series of Recommendations, H.245 in particular. As the most recent event, ISO/IEF JTC1/SC29/WG11 (a.k.a. MPEG) has requested support for the full MPEG4/Audio for transport in H.324 (N2509, October 1998). The automatic adoption of this and other requests may have important technical implications. This contribution proposes that careful assessment of the implication of such adoptions should be performed by SG 16 as a whole prior to acceptance, with input from other SGs (e.g. SG 12) when necessary. In particular, this contribution proposes that the normative support for MPEG4/Audio is premature without very careful study within the ITU.