[Asterisk-Users] Asterisk Voice Problems

[kevin ling]

Hi,

Have you try to install this TDM400P card on another asterisk server? Same
problems? 

Regards,
Kevin 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Shyam Gopale
Sent: Thursday, April 27, 2006 5:07 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] Asterisk Voice Problems

Hi, 

I am running Asterisk 1.2.1 using Digium TDM 400P with 4FXO lines to connect
to the PSTN world. But, I constantly get clipped voice whenever there is a
call placed using Zap channels. 
I have tried it all the recommended solutions
- turned off all non essential services on the machine
- ran fxotune
- Changed IRQ settings
But nothing works. 
The only thing that works is reducing the rxgain to around -20. But this
leads to other issues like the hangup on the PSTN line is not detected by
Asterisk. 
Anyone have a clue about how to fix the bad quality problem. Any help will
be highly appreciated. 

Thanks,
Shyam
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