[Asterisk-Users] Outgoing Volume

[Robert Webb]

On Tue, 29 Mar 2005 12:30:31 -0800
  Noah Silverman <noah at allresearch.com> wrote:
> hi,
> 
> We are using PTSN lines connected through the Digium FXO 
>modules for our
> incomming lines
> 
> When a caller calls in, the prompts play back at a 
>really high volume. 
> They are a bit distored and fuzzy since they are so 
>loud.
> 
> Can anybody give me some suggestions??
> 
> Thanks,
> 
> -N


Look in the zapata.conf and in the section for the PSTN 
channels add txgain=-5 or some other variation. This will 
reduce the volume by a percentage on the transmit out of 
the FXO port.

See www.voip-info.org for the full zapata.conf setup..