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.
However I tried shutdown on voice port and then no shutdown to bring it back up but now show voice port summary shows that status os dorm and on-hook but operational status is down. How do I bring operational status back up?
but that link is about disconnect problems - which isn't my issue. The ports work fine for a couple of days and then seem to fail for no reason. I'd like to find a way to debug so I can identify problem.
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The short answer is that you don't.... That isn't entirely true while at
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...