I'm making up a list of the media types that are carried using SIP, or
rather, that are described in the SDP carried in real SIP systems.
The list I have so far is:
- m=audio
- m=video
- MSRP, for message-oriented IM and file transfer:
m=message 7394 TCP/MSRP *
- Real-time text using T.140 with redundancy:
m=text 11000 RTP/AVP 100 98
a=rtpmap:98 t140/1000
a=rtpmap:100 red/1000
a=fmtp:100 98/98/98
- Fax:
RFC 3362:
m=image 1000 TCP t38
RFC 4612:
m=audio 6800 RTP/AVP 0 98
a=rtpmap:98 t38/8000
a=fmtp:98 T38FaxVersion=2;T38FaxRateManagement=transferredTCF
- Whiteboarding
I've seen proposals to use SDP to carry TCP connection information
so that a whiteboarding application (including a web browser) can
connect to a whiteboarding server, using SDP like this:
m=application 54111 TCP t38
a=setup:passive
a=connection:new
Does anyone know of any others?
Thanks,
Dale
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