In a situation where I started making a call, and then hung up while the call was going out the FXO port, I had that FXO port get "stuck" with the LED on, and I couldn't make calls from that line, nor could that line accept incoming calls.
In fact, Auto Attendant doesn't even play anymore when this line rings.
If I call my other line, everything works as expected.
On previous occasions when this has happened, I would reload the UC520, then it would work fine again.
Since, I found that I can do the following:
The problem is, after the voice-port comes back, UC520 will try use the line to try and make a call, but nothing ever happens, and the line simply goes dead and UC520 hangs up after 40 seconds.
Is there a better way to get an FXO port "unstuck", or reset it?
Luis, this sounds like an FXO disconnect issue. More information about the problem and ways to mitigate it on: