> A UA that supports session-timer > establishes a call with another UA that > supports session-timer and the refresher > is, say, uac. The UAC, sends a > re-INVITE to hold media. If the re-INVITE > contains Supported: and Session-Expires: headers, > it may be mistaken for session refresh. > Should the UAC send re-INVITE without these > headers to hold media?
It should not unless it also intends to deactivate the session refreshes. > A re-INVITE having both Supported: and > Session-Expires: headers and increased > version in o= line of SDP (for both timer > refresh and hold) is allowed (hold and > session timer referesh allowed in a single > request)? Yes. Basically all re-invites become session refreshers. If the SDP o= line did not change, it is purely a session refreshing re-invite. If it did change, the session is refreshed based upon the content of the re-invite and its 200 response. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
