Joerg Wedermann <joerg.wederm...@ewetel.net> writes: > i have a question regarding an INVITE containing anonymous and > user=phone in the From-header like this: > > From: <sip:Anonymous@anonymous.invalid;user=phone>;tag=090142342mnb2343 > > I have this case and the UAS doesn't respond anything -- even not > a 400 Bad Request. > > By the way, is it okay not to send any response in such a case?
Basically, no. A UAS should give a response to any request, and there is a suitable array of error codes for all possibilities. In this case, though, the UAS should process the request based on the request-URI -- the From and To addresses are essentially comments documenting the original request, and as long as they are syntactically correct, the UAS can process the request successfully. Dale _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
