Every few days the vic-2fxo card in my 1751v router seems to stop working properly. It does not answer calls coming in but appears to try and place outbound calls. Only it doesn't seem to pickup the line. i.e. no dialtone, ringing tone etc. but the system seems to think the call is going through.
A show voice port summary shows the port is off-hook and operational status as up but it's not placing the call.
Any ideas? Any suggestions on debugging this some more? I'm sure it a faulty fxo but it's strange thatit only happens every few days.