asterisk users - Apr 2006 - annoying noise on analog phones on tdm400p

Hi!

I am using asterisk with two tdm400p cards.
Sometimes (one call out of ten), when a call comes in and is taken,
there is some terrible noise for a short time in the line (for about a
second).
Both partys can hear the noise. And sometimes the call has to be hung
up, because the noise doesn't disappear.


Has anyone any idea where the problem could be?


cheers,
tom

hmm.. does really nobody had such an issue before?


Thomas Artner wrote:
> Hi!
> 
> I am using asterisk with two tdm400p cards.
> Sometimes (one call out of ten), when a call comes in and is taken,
> there is some terrible noise for a short time in the line (for about a
> second).
> Both partys can hear the noise. And sometimes the call has to be hung
> up, because the noise doesn't disappear.
> 
> 
> Has anyone any idea where the problem could be?
> 
> 
> cheers,
> tom
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