On Wed, 7 Jul 2004, Ryan Courtnage wrote:

> Hello,
>
> Over the past several weeks, we have been having an intermittant problem with
> our deployment of a TDM400P card (4 fxo). �We have tried many things, and the
> problem still re-occurs.
>
> The Problem:
>
> Occasionally (every 48 hours), the TDM400p card will stop answering incoming
> calls on ALL fxo ports. �Attempts to send outbound calls on any Zap channel
> will result in hearing a loud 'static' noise on the line.
> On one occasion the problem actually occurred while someone was on an active
> call with the PSTN. �25 minutes into the call, this loud static noise
> occurred, and the call was dropped.
> Debug log files show nothing unusual.  It's obvious that * is unaware that
> there is any problem with the card.

I had a simmilar problem with an FXS card in a Compaq ML330. I would get a
power reset message on my server console. Are you sure the noise is coming
from the FXO ports? Are you using SIP phones, or ZAP?

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