friend friend wrote: > Dear Friends, > In SDP, media (m line) is mandatory? if so, if the UAC doesnt support > video, audio, can the UAC send SDP like m: 0(zero)? > > Please clarify. > The m header is not mandatory. RFC 4566 section 5 says
An SDP session description consists of a session-level section followed by zero or more media-level sections. If the UAC supports no kinds of media it'll send no media-level sections. Not very _useful_, since the UAS must respond with the same number of media-level sections! frank _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
