Alice MUST add the new "m=video" line below the old "m=" lines in the new Offer (The order is important). Bob should accept the Offer by sending a SDP response containing a "m=video" line with a port number equal to zero. References: RFC 3264 subclause 6 (for the answer with port =zero) and RFC 3264 subcaluse 8 (for the media order). I have listed here (http://betelco.blogspot.com/2010/03/sdp-offeranswer-soa_2993.html) some use cases.
--- En date de : Ven 19.3.10, Iñaki Baz Castillo <[email protected]> a écrit : De: Iñaki Baz Castillo <[email protected]> Objet: [Sip-implementors] Does SIP/SDP allow one-way RTP? À: [email protected] Date: Vendredi 19 mars 2010, 1h16 Hi, does SDP allow one-way RTP? this is, alice is speaking with bob. alice has a webcam and offers video in a re-INVITE but bob has no webcam. Could bob accept the new SDP (both audio and video media strems)? -- Iñaki Baz Castillo <[email protected]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
