I have configured sip trunk between freepbx and cucm6 and was successfully done. But problem is that when I try to call cisco ip phone from sip phone and hangup sip phone after 1 or 2 rings, cisco ip phone remains ringing and after sometime it get hangup. How can I resolve this ringing issue after sip phone hangsup?
If you hang up before the destination answers the source should send a SIP CANCEL message. If you have answered it would then need to be a BYE message. Take a wireshark or enable troubleshooting traces in CUCM and take a look at the SIP dialog. Feel free to attach the traces to this thread if you want a second look at them.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
Over the last few months, I have had the privilege of working on SI...
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