Inter cluster call disconnects after 20 sec of Hold via SIP Trunk
Today we have faced an issue that the call comes from Cluster A to Cluster B via SIP Trunk, the phone of cluster A holds the call of Cluster B's phone and after around 20 seconds the call disconnects automatically.. As per the disconect cause code from RTMT it is (127) internetworking, unspecified.
Please explain what could be the cause for this and looking forward for your suggestions.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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