[Asterisk-Users] Zap FXO/FXS issues, 1.2.0-beta1

[alan]

> Subject: Re: [Asterisk-Users] Zap FXO/FXS issues, 1.2.0-beta1

Rich Adamson  <radamson at routers.com> wrote:

> > We're having issues with the FXO/FXS ports on our Digium TDM cards
> > sporadically. I'm wondering if anyone else has had these problems, or if
> > anyone can provide guidance diagnosing or fixing the issue?
> >
> >
> > The symptoms are that the FXO and FXS ports "stop working", usually
> > after 2-4 weeks of server uptime. When this happens, sending a (SIP)
> > call to an analog phone on an FXS port causes the phone to ring, but
> > when you answer the phone, the off-hook is not detected. Further rings
> > sound like clicks in the off-hook handset. If the handset is hung up,
> > ringing resumes.
>
> The digium analog TDM card (four modules) with early revision
> numbers (rev E/F and before) had a problem where the card fails to
> respond every week (or more). Stopping asterisk, stopping the drivers,
> and reloading the drivers would cause the card to work again.
>
> If that sounds like a match for your problem, contact digium support
> as the card is still under warranty. Replacing it fixed the problem for
> me.


This is our problem, and zttool reports our board revisions as E/F for
both.

Thanks for the pointer! I'll get right on it.

Alan Ferrency
pair Networks, Inc.
alan at pair.com