Opened 10 years ago

Last modified 9 years ago

#1300 closed enhancement

Symmetric payload type in generating SDP answer — at Version 1

Reported by: bennylp Owned by: nanang
Priority: normal Milestone: release-2.0-beta
Component: pjmedia Version: trunk
Keywords: Cc:
Backport to 1.x milestone: Backported:

Description (last modified by nanang)

Answerer SHOULD use matching payload type as the offer:

  • RFC 3264 6.1:


In the case of RTP, if a particular codec was referenced with a specific payload type number in the offer, that same payload type number SHOULD be used for that codec in the answer.

  • RFC 6184:


To simplify the handling and matching of these configurations, the same RTP payload type number used in the offer SHOULD also be used in the answer, as specified in [8]. An answer MUST NOT contain the payload type number used in the offer unless the configuration is exactly the same as in the offer.

Change History (1)

comment:1 Changed 9 years ago by nanang

  • Description modified (diff)
  • Summary changed from With H.264, answerer SHOULD use matching payload type as the offer to Symmetric payload type in generating SDP answer
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