hello, By reviewing RFCs I came with that question: RFC 3840, section 9 says:
The following production updates the one in RFC 3261 <https://tools.ietf.org/html/rfc3261> [1 <https://tools.ietf.org/html/rfc3840#ref-1>] for contact-params: contact-params = c-p-q / c-p-expires / feature-param / contact-extension However, on https://tools.ietf.org/html/rfc3261 I don't see 3840 in the list "Updated by" Is there any reason? Also, with only RFC 3261, Contact: <sip:[local_ip]>;mobility=fixed was valid. However, with RFC 3840, Contact: <sip:[local_ip]>;mobility=fixed is invalid, we MUST have Contact: <sip:[local_ip]>;mobility="fixed" How is that possible that 3840 "broke" 3261? Thanks. -- Sheldon _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
