I've been working on an old analog paging controller this afternoon, so I've been trudging around in the docs for FXS/FXO commands...
I have a pretty good hunch that "no battery-reversal" should take care of your issue. The debug lines you shared initially indicate that the FXO port is hanging up because it is sensing that the answer supervision signal (reversed voltage) went away (that's the "normal_battery" part). "no battery-reversal" will disable answer supervision. -mn From: cisco-voip [mailto:[email protected]] On Behalf Of Norton, Mike Sent: July-04-16 3:41 PM To: Damisch, Kevin <[email protected]>; Ryan Huff <[email protected]>; Wes Sisk (wsisk) <[email protected]> Cc: [email protected] Subject: Re: [cisco-voip] FXO port to Viking C-1000B door entry controller Re-reading the thread, I noticed something... "no supervisory disconnect signal" actually *enables* tone-based disconnect supervision for *any tone*. Definitely not what you want!!! The "no" part of that command is that you are disabling power-denial disconnect signaling. In other words, it is a toggle between power-denial signaling or tone signaling. Not sure what IOS version you're on but at some point Cisco renamed the command to make it more clear. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/vcr4/vcr4-cr-book/vcr-s12.html#wp1525047420 "[supervisory disconnect anytone] replaces the no supervisory disconnect signal command. If you enter this command, the supervisory disconnect anytone feature is enabled, and the message supervisory disconnect anytone is displayed when show commands are entered." -mn From: cisco-voip [mailto:[email protected]] On Behalf Of Damisch, Kevin Sent: June-30-16 12:06 AM To: Ryan Huff <[email protected]<mailto:[email protected]>>; Wes Sisk (wsisk) <[email protected]<mailto:[email protected]>> Cc: [email protected]<mailto:[email protected]> Subject: Re: [cisco-voip] FXO port to Viking C-1000B door entry controller Ryan - the voice port is set to impedance 600r already. Wes - I'll try "no supervisory disconnect signal" and see what happens. Thanks! Kevin
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