Hi
        But RFC-4028 says this scenario will lead to call failure.  Thanks for 
ur reply
<RFC-4028>
         If the request doesn't indicate support for the session timer but
   contains a session interval that is too small, the proxy cannot
   usefully reject the request, as this would result in a call failure.
   Rather, the proxy SHOULD insert a Min-SE header field containing its
   minimum interval.  If a Min-SE header field is already present, the
   proxy SHOULD increase (but MUST NOT decrease) the value to its
   minimum interval.  The proxy MUST then increase the Session-Expires
</RFC-4028>
 
Thanks and Regards
S.Radha krishna
 

Nirmala Vijaya-A4154C <[EMAIL PROTECTED]> wrote:
Hi,

UAC MUST send SUPPORTED header with "timer" tag in the Request it sends
if it wants to supports session timer.
If UAC doesn't SUPPORTED header, there is no way that UAS can make sure
that UAC supports Session Timer. 
Hence I feel that UAS can send a 200 OK without Session Expires and it
doesn't start its session timer.

Regards,
Nirmala





-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of saragadam
krishna
Sent: Thursday, October 06, 2005 11:56 AM
To: [email protected]
Subject: [Sip-implementors] A question on session timer

Hi all
If UAS receives session refresh request without supported
header and with session-expires header and min-se header then what
response UAS need to send?



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