Hi Darshan: In this case you need to send the REFER each time you want to play the announcement at 7:00AM. The implicit subscription created by the REFER will provide you events that tell you about the completion of such a call and it's clearing. Once the call is established with the IVR/IP and terminated, to recreated this call you'd have to send a REFER again. The call clear would terminate the implicit subscription too.
If the Application Server is doing this, you don't have to care if it needs to remember to send this REFER everyday at 7:00AM. regards, banibrata. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Darshan Bildikar Sent: Wednesday, August 03, 2005 4:22 PM To: [email protected] Subject: [Sip-implementors] Question on REFER As we know the REFER method is used to refer a user to another URI. But what if I need that the referral need not to be effective immediately i.e. I want to send a REFER now but request A to connect to B at a particular point in time. This would be useful in applications where I need to make a system initiated call or just need to initiate a call to a user and play a pre recorded announcement. For example, call a user everyday at 7:00 AM and play out a pre recorded song to him. Is REFER the right way to do this. Since my refer subscription is going to be a long running one I need to figure out a way to keep it in a persistent data store, not in memory. Any thoughts/comments appreciated. Darshan _______________________________________________ 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
