[OpenSIPS-Devel] [ opensips-Feature Requests-3530685 ] b2bua unable to provide ringback

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Wed May 30 03:15:55 CEST 2012


Feature Requests item #3530685, was opened at 2012-05-29 18:15
Message generated for change (Tracker Item Submitted) made by rrevels
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Category: modules
Group: trunk
Status: Open
Priority: 5
Private: No
Submitted By: Richard Revels (rrevels)
Assigned to: Nobody/Anonymous (nobody)
Summary: b2bua unable to provide ringback

Initial Comment:
Using the prepaid example, when the media server sends the first BYE a re-INVITE is sent back to the caller from the b2bua with no SDP.  Next an invite is sent to the far end callee.  If the callee sends back a 183 w/ port information this is not able to be passed back to the caller as the caller is still waiting on a ACK (w/ sdp) to it's 200 to the re-INVITE.

If possible, I would rather see the b2bua send an ACK to the caller immediately with ip of 0.0.0.0 (call-on-hold).  Then re-INVITE the caller with the callee ports as soon as anything with an SDP replies.  Finally, if that something was a provisional response (or nothing with an sdp ever came through) then re-INVITE the caller again on receipt of the final 200 from the callee. 

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