I am using the A800P card having 8 FXS modules with Trixbox 2.8.0.3.
The problem is with the calls, when we make call from one FXS port to other,
and when the call is answered, the call contain too much background noise,
most of the time it is difficult to understand the voice of the other side. We
have tried different the options mentioned in the Openvox forum to resolve
the issue, but the problem still persist. The links for Openvox forum we refer
are as follows.
The above mention problem is resolved, by changing the driver
"openvox_dahdi-linux-complete-2.3.0.1+2.3.0" downloaded from Openvox site. Now
all the 8 FXS port are working properly with good sound quality without any
background noise problem.