Peter Saint-Andre wrote:
Lauri Kaila wrote:
2008/4/10, Peter Saint-Andre <[EMAIL PROTECTED]>:
Offlist, someone mentioned to me that it might be appropriate for
XEP-0167 to recommend or even require support for the ITU-T's G.711
technology, which is represented by payload-types 0 (PCMU) and 8 (PCMA)
as registered with the IANA.
http://www.itu.int/rec/T-REC-G.711/e
Thoughts?
I think 64 kbits/s is too much to be mandatory.
I think the idea was that G.711 is supported everywhere, so recommending
support for it in Jingle would help interoperability with existing SIP
networks and the PSTN.
Indeed. We have a Jingle->SIP/H.323 gateway. I don't know of any SIP
or H.323 endpoints which support Speex, so if that is the only
recommended codec for Jingle audio, then we have to be prepared to
transcode the audio in all cases. By guaranteeing a minimum of G.711,
we should be always able to gateway between protocols without
transcoding if so desired, even if we may need to transcode for higher
quality audio e.g. Speex to AAC.
--
Paul
