[Asterisk-Dev] zaptel echo preload

[Matthew Fredrickson]

On Jan 17, 2006, at 5:43 PM, James Harper wrote:

>>
>> I would assume your running an analog line card.  Have you tried
>> running fxotune to make sure your line impedance settings are not
>> totally out of whack?  That would be a source of initial acoustic
> echo.
>>   There's also a small (8 tap) canceler on the fxo line interface part
>> that could be tweaked for analog line issues such as those you might
> be
>> seeing.  Like Steve said, preloading coefficients is essentially
>> useless outside the analog line realm, so I'm not sure if this is the
>> right answer.
>>
>
> fxotune isn't for the x100p cards (which don't have adjustable
> impedence).

Ahh.... no wonder you have some mad acoustic echo.  Software working 
around hardware problems.... ugh.

Matthew Fredrickson