Hey,
According to RFC 3264 par.7 "If the version in the origin line does not increment, the SDP MUST be identical to the SDP with that version number. The answerer MUST be prepared to receive an offer that contains SDP with a version that has not changed; this is effectively a no-op. However, the answerer MUST generate a valid answer (which MAY be the same as the previous SDP from the answerer, or MAY be different), according to the procedures defined in Section 6." Do you think following two SDP offers are identical? ############# SDP 1 v=0 o=MxSIP 1751268753124820177 614423801163363146 IN IP4 10.249.130.34 s=- c=IN IP4 10.249.130.34 t=0 0 *a=sendrecv* m=audio 5004 RTP/AVP 18 8 101 a=rtpmap:18 G729/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 ############# SDP 2 v=0 o=MxSIP 1751268753124820177 614423801163363146 IN IP4 10.249.130.34 s=- c=IN IP4 10.249.130.34 t=0 0 m=audio 5004 RTP/AVP 18 8 101 a=rtpmap:18 G729/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 I checked marriam-webster, and it seems that definition 1(selfsame) makes them not identical, while definition 2(essentially same) makes them identical. www.merriam-webster.com/dictionary/identical What do you think? Best Regards, Xin _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
