This belongs on sip-implementors, which is where all basic sip questions go. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 19, 2001 8:37 AM To: [EMAIL PROTECTED] Subject: [SIP] If there are no SDP body, how does UAc do ? >UAc sends INVITE message to UAs and that INVITE massage have three RTP payload >types 0,4,and 8. > >UAs sends 180 and 200 response to UAc but there are no SDP body, Well, this is a clear violation of the spec. bis-03 is crystal clear on this: The offer MAY be placed in an INVITE, in which case the the answer MUST be in a 200 class response, and the ACK MUST NOT contain SDP. Or, the INVITE MAY contain no SDP, in which case the offer MUST be in the 200 class response, and the ACK MUST contain the answer. > >At this time, How does UAc do ? We don't specify error handling for every single error. Do what you think is best. I would probably ACK and send a BYE, terminating the call. -Jonathan R. --- Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave. Chief Scientist First Floor dynamicsoft East Hanover, NJ 07936 [EMAIL PROTECTED] FAX: (973) 952-5050 http://www.jdrosen.net PHONE: (973) 952-5000 http://www.dynamicsoft.com _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
