asterisk users - Dec 2007 - Disturbance "noise" in the background for digium card

Hi All;

I installed one digium card of 2 fxo and 2 fxs, but
the following problems related to the voice are
happening:

1) Sometimes when I call to the PBX, I hear like modem
sound and after little it disapear.

2) There is a disturbance in the background (like the
channel radio disturbance that might happen if the
frequency was not captured well), and that disturbance
appear much more when Asterisk goes via IP Trunk.

Is it a configuration issue or it might be a digium
card defection so need to be replaced?

Any advise?
Regards
Bilal


     
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bilal ghayyad wrote:
> 1) Sometimes when I call to the PBX, I hear like modem
> sound and after little it disapear.
> 
> 2) There is a disturbance in the background (like the
> channel radio disturbance that might happen if the
> frequency was not captured well), and that disturbance
> appear much more when Asterisk goes via IP Trunk.
> 
> Is it a configuration issue or it might be a digium
> card defection so need to be replaced?
It is very likely that your issues can be solved by adjusting configuration.
Please contact support at digium.com for help with what needs changing.

-- 
Russell Bryant
Senior Software Engineer
Open Source Team Lead
Digium, Inc.