Session Timers detect availability of session and is restricted to an existing dialog.
On the other hand, OPTIONS can be used outside of a dialog(session/call) independently, to determine the larger availability of SIP UA at the far end, even if on a per hop basis. Both Session Timers and OPTIONS serve their own different use. Regards Harsha -----Original Message----- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of T Satyanarayana-A12694 >With session-timer approach, both the sender and the receiver can detect >the live-ness of the other. This can work end-to-end (i.e. UA to UA). Regards Satya T _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
