________________________________________ From: sip-implementors-boun...@lists.cs.columbia.edu [sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Paul Kyzivat [pkyzi...@cisco.com]
If so, then it has given the UAS few options. The UAS can answer with an SDP containing no m-lines, and thus establish a connection with no media. OR, the UAS can return an error, such as 415, if it doesn't want to participate in a call with no media. I think you will find many/most audio UAs will probably return 415 or some other error. It would be more forgiving of them to accept the call and just treat it as if on hold for whatever media they have. _______________________________________________ Beware that 415 is not the correct error response for this -- 415 means that the UA cannot understand the media type of the body of the INVITE (which will be application/sdp). Response 488 is used to say that the characteristics of the media described in the SDP body are unacceptable. Dale _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
