We're having a strange issue with our locations configured with FXO ports only where they eventually stop working. Incoming calls get one ring and then dial tone. Outgoing calls work fine. When issue show voice calls, each port diplays something like this:
0/2/1 - - - vpm level 1 state = FXOLS_ONHOOK
vpm level 0 state = S_UP
calling number , calling name unavailable, calling time 12/17 16:11
running the ccm-manager command I see the latest MGCP failover / switchback occured yesterday evening when I assume everything stopped working.
I can reset the gateway and nothing happens. The only way to resolve this issue is to physically restart / reload the router.
Is there any other way?
I'm running 12.4(6)T5-SP-SERV-CRYPTO on all 13 locations. Only the 4 locations without a PRI are having this issue.