Cisco CME FXO Port Stucked

[VCsupport17]

Hi Community,

We have Cisco CME router 2921 and we have issue on the fxo port which got stuck because of incoming and outgoing calls. To make it work again I need to do a shut and no shut command on the voice port. Or disconnect and reconnect again the line. Any idea what's causing the problem? How to troubleshoot this kind of issue?

I have this configuration on the fxo voice port:

voice-port 0/3/3
 trunk-group FXO-16PORTS
 supervisory disconnect dualtone mid-call
 input gain 14
 cptone SA
 timeouts call-disconnect 5
 caller-id enable

[Manish Gogna]

Hi,

A couple of good links with similar issue that you can reference

https://supportforums.cisco.com/discussion/10609881/please-help-cme-aa-fxo-hang

https://supportforums.cisco.com/discussion/10571416/fxo-port-hang

HTH

Manish

[VCsupport17]

Hi Manish,

Thanks for the links.

Also, i observed that if the caller from PSTN calls an extension and will not answer, then the caller hangs up the extension still rings. The FXO port doesn't goes to on-hook immediately.