[cisco-voip] FXS ports stuck in WAIT_RELEASE state

[Kris Seraphine]

>From time to time I have customers who have problems with FXS ports 'locking
up'.  In most cases when this happens the port will be stuck in the
S_WAIT_RELEASE state like so.

2/0/2         None       -  S_WAIT_RELEASE        FXSLS_ONHOOK

I've not found any way to clear this except reloading the router.  I'm
wondering if anyone can give me some insight as to why this happens and if
there's a way to clear the port when it does.

In this particular case, the connected device is a fax machine.  Is it
possible that the fax machine is causing some voltage on the line that is
seizing the port? If so, can anyone recommend a surge protector to protect
against this?

This particular customer is running a 2821 with a HD-NM and 12.4(XC)4 but
I've had the problem with VIC2-4FXS/DID cards as well.

Thanks


-- 
kris seraphine
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20061120/96cf9ad6/attachment.html