07-01-2018 09:07 AM - edited 03-17-2019 01:08 PM
Hi Experts,
Issue: PSTN call drops exactly after 19 seconds[both outbound and inbound]
Setup: CUCM==>SIP==>Router 4351[IOS 16.1.1]==> T1==> Telco
In the q931 you can see "Cause i = 0x80E6 - Recovery on timer expiry" and gateway disconnect the call
In the CCSIP you can see Reason: Q.850;cause=86
Here 1.1.1.1 is CUCM IP and 2.2.2.2 is gateway IP
Please find the attached CCSIP messages and q 931 and help me with the issue
07-01-2018 10:20 AM
07-01-2018 10:28 AM
07-01-2018 10:30 AM
Attached again kindly check. It does not look like Sip expiry timer issue as the working node has the same parameter set. Also the issue is intermittent
07-01-2018 11:37 AM
07-01-2018 06:52 PM
What could be the possible reason from your experience. Also what need for further investigation from CCM end?
07-02-2018 03:46 AM - edited 07-02-2018 03:54 AM
07-02-2018 08:38 AM
07-03-2018 01:10 AM
One thing noticed is for bad calls gateway is not sending 183 to cucm
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