>Hi; > >I have searched the RFC2327 and RFC3264 but couldn' find the answer. What if >an SDP request has requested one codec type but it include more than one >rtpmap codec details headers. Does it suitable? Does it cause an codec error >with 4XX response ?
Totally valid, though the extra a=rtpmap lines don't add anything. Probably a server/midbox removed other offered codecs, or maybe the sending UA was configured to only offer G729 and didn't bother removing the rtpmaps. Responding with 4xx would be very wrong. -- Randell Jesup, Worldgate (developers of the Ojo videophone) [email protected] _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
