[SIPForum-discussion] Expire Header

[Keyur Amin]

Hello All,

Currently, the expected behavior for an INVITE with Expires header is:

      If the request is an INVITE that contains an Expires header
         field, the UAS core sets a timer for the number of seconds
         indicated in the header field value.  When the timer fires, the
         invitation is considered to be expired.  If the invitation
         expires before the UAS has generated a final response, a 487
         (Request Terminated) response SHOULD be generated.

What is an INVITE doesnt containt Expires header? Is there a default timer that would fire off UAS?

 
Thanks,
Keyur Amin
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