Hi All,
As per RFC3262:Section 4 UAC Behavior: Contact header presence in SIP responses has been defined as following: Contact R - Contact 1xx - Contact 2xx - Contact 3xx o Contact 485 o As per above table snippets , can any one help me to find in which real time scenario, on behalf of PRACK, UAS generates 1XX,3XX and 485 responses. -- Regards Ajit Singh GlobalLogic www.globallogic.com <http://www.globallogic.com/>http://www.globallogic.com/email_disclaimer.txt _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors