Dear Expert, Is it valid to send deRegister request i.e. REGISTER with expires=0 before receiving final response for previous registration request i.e. REGISTER with expires >0 ?
As per RFC 3261, It is mentioned for new REGISTER request only UAs MUST NOT send a new registration (that is, containing new Contact header field values, as opposed to a retransmission) until they have received a final response from the registrar for the previous one or the previous REGISTER request has timed out. Thanks, Parveen _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors