[OpenSIPS-Users] Topology hiding and unsuccessful dialog termination

[microx]

Hi all, 

I'm facing a problem as follows. The scenario is below.
                  Proxy server
                  Outbound proxy
           caller                      callee
The packet flow from caller to callee is ``caller->outbound proxy->proxy
server->outbound proxy->callee''.
The outbound proxy invokes topology_hiding() and match_dialog() to prevent
the call from knowing the 
IP address of the proxy server and enable successful packet forwarding. In
this scenario, the proxy server 
must call record_route() when receiving an INVITE message. 
Otherwise, the BYE message from the caller will not go under loose_route()
and thus the corresponding 
dialog will not be terminated.

With record_route(), the BYE message from caller can be handled properly by
the proxy server. However, 
my issues is that *the BYE message from callee* (no route field in the
header) cannot be handled 
successfully so that the proxy server does not terminate the corresponding
dialog (as I wish).

Please kindly help to solve this problem. Many thanks in advance.

Best regards,
Chen-Che



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