Hi, The UAS is noncompliant to RFC 3261 (and RFC 4916).
RFC 3261 section 8.2.6.2 requires that the response's To/From URI equal request's To/From URI. > So is UAC1 send ACK for this? Or UAC1 ignore > that 200OK due to the change in From header value? The UAC can basically act however it wants. However if you decide to be lenient and send ACK, you'd need to decide if their noncompliance should impact what you include within the From (or To if they had non-compliantly changed it). -brett _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
