Nagaraj, Take a look at http://www.ietf.org/internet-drafts/draft-ietf-sip-session-timer-08.txt
Another handy tool would be RTCP packets. Hope this helps. Regards, --victor Victor Paulsamy E-mail: [EMAIL PROTECTED] Senior Software Engineer Phone : 650.930.1339 (Direct) Zapex Technologies, Inc. Phone : 650.930.1300 (Main) Mountain View, CA 94043 Fax : 650.930.1399 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > [EMAIL PROTECTED] > Sent: Monday, March 25, 2002 8:05 AM > To: Nagaraj > Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: [Sip-implementors] Re: [Sip] Timeout condition in hold state > > > > This appears to be more concerned with specific call processing issues and > policies than with SIP. It should be handled outside of SIP. A similar > concern could be raised about long duration calls. A stateful proxy will > reserve resources for all calls. If no activity is seen on a call for a > significant period of time, what should be done? Currently in the PSTN in > North America, calls are terminated in the network if they have > been up for > 48 hours to preserve resources. I do not see this being as SIP issue as > well although it will need to be implemented on SIP-enable systems. > > > > > > > "Nagaraj" <[EMAIL PROTECTED]>@ietf.org on 03/25/2002 01:15:32 AM > > Sent by: [EMAIL PROTECTED] > > > To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> > cc: > > Subject: [Sip] Timeout condition in hold state > > > > Hi all, > > Is there any�provision�in SIP to take care of the timeout in holding > condition�? > > Consider a situation: > > ua-A� establishes a SIP session with ua-B. > After some time ua-B requests for a hold by using INVITE method. > ua-A goes into "hold" state and waits for ua-B to resume. > > If now network goes down at ua-B, and he disconnects without sending any > more SIP messages, > how ua-A will come to know about�it. > > Is there a mechanism for determining timeout�value for ua-A, so that he > wont wait forever. > > Regards, > > -Nagaraj. > > > Nagaraj. Bhat. > Smart Yantra Technologies Pvt Ltd > #57, 3rd Floor, HMT Layout > Behind R.T. Nagar Police Station > R.T. Nagar > Bangalore - 560032 > Phone: 91-80-3634917 / 91-80-3634918 > Fax: 91-80-3631927 > > > [EMAIL PROTECTED] > [EMAIL PROTECTED] > [EMAIL PROTECTED] > > > > > _______________________________________________ > Sip-implementors mailing list > [EMAIL PROTECTED] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
