[OpenSIPS-Users] Request Timeout on INVITE After Idle Registration

[Nabeel]

I managed to capture the SIP traffic with Wireshark.  It seems that the
party generating the 408 reply is OpenSIPS, not the callee.  OpenSIPS does
not seem to forward the call to the callee at all.

Below are traces showing a successful call and a call with Request Timeout.

The server IP is 162.249.6.110, the caller IP is 92.40.249.9, and the
callee IP is 188.29.165.24.

Trace for a successful call:

http://pastebin.com/2xn0bkEU

Trace for a call with Request Timeout:

http://pastebin.com/WR7BA6pj

Please advise what may be causing this.
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