[asterisk-users] Automatic Gain Control

[Olivier]

2009/7/7 Brent Davidson <brent at texascountrytitle.com>

> Is there any possibility of DAHDI supporting Automatic gain control on
> TDM ports?  I'm having issues at a couple of offices where calls made to
> local numbers are fine but a when a calls from or goes to a large
> percentage of long-distance or 1-800 numbers the person at the remote
> end cannot hear the person in my office.  Boosting the gains in
> zapata.conf (I'm still using 1.4.21) to 8 solves the problem with
> long-distance lines, but then local calls say the person in my office is
> too loud.
>

>
> I understand that it is going to be difficult to reliably detect a major
> drop in the volume at the far end of the call, but I'm just wondering if
> there is a good solution for this.  We're using Rhino WC4-FXO-ec cards
> and the OSlec echo canceler (since the on-board echo canceler didn't
> seem to help our echo issues)


hello,

I'm afraid I can't be of any help but as a first step, I'm wondering if
there's a way to translate
user experience such as "too loud" into figures such "volume is 8" ?


>
> Thanks,
> Brent
>
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