is an FXO card hot swappable?

Unanswered Question
Apr 30th, 2007

I keep having a line hang on an FXO card. Can I just reset the card or will it bring down the whole 2801? (Until my phone co figures out why that line hangs)

I have this problem too.
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Overall Rating: 4 (1 ratings)
Paolo Bevilacqua Mon, 04/30/2007 - 05:14

No, VIC and WIC cards are not swappable.

Note, there are bugs or applications that can make the FXO port to hang, what IOS are you running, and do you have configured supervisory disconnect ?

Hope this helps, please rate post if it does!

Paolo Bevilacqua Mon, 04/30/2007 - 05:48

Suggest you upgrade to latest maintenance of 12.3 then should be 12.3(22).

For the supervisory disconnect, see:

Note: unless you are in the US, ground-start method is to exclude. Battery reversal and power denial _may_ be available, but you have to ask your telco. Tone detection method instead, is totally based in the router.

If you want an easier, permanent solution, get ISDN BRI. No more stuck ports, and a lot of nice features to gain.

Thanks for the nice rating and good luck!

townofnewmarket Mon, 04/30/2007 - 09:24

Well I do have an ISDN PRI port that I route a lot of phone lines down. That has been pretty flawless. Unfortunately, when I laid out the system, I think I made a bad judgement. I decided to keep 2 POTS lines in case CCM ever went down. And I chose the 2 POTS lines we publish as the ones to keep. So when they get hanged at the FXO, I'm SOL. And no Caller ID unless I reconfig the box.

What is the command to just reset the port?? Through IOS? Is there such a command to just bounce it?


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