[SIPForum-techwg] SIP/RTP

[Michael Procter]

On Thu, April 3, 2008 4:08 pm, Zuñiga, Guillermo wrote:
> Mornign all.
> I am trying to find a document in the web that help me to know where I
can
> know what means all the Parameters described
> In a SIP and RTP messages, cause I would to know which is the codec is
negotiated by a Call.
> For example for a Call I have the following:
> m=audio 63132 RTP/AVP 18 101 13 (someone tell me that 18 means codec
g729)
> m=audio 63132 RTP/AVP 0 101 13 (and 0 means codec g711)
> But I would like to know if exist any document with this info or
something
> like RFC, I don't know?

See http://www.iana.org/assignments/rtp-parameters

The table called 'RTP Payload types' lists the assignments and related RFC
numbers.

Regards,

Michael