[Asterisk-Users] Echo for first 15 to 20 seconds

[Rich Adamson]

> I am using asterisk with a handful of DM04B cards. Everything seems fine except for an echo on 
all calls on the local end of the call. In almost
> all cases the echo goes away after 15 to 20 seconds. I am attributing the echo going away to 
the echo cancellation code that was enabled when
> the following options are set:
>  
> echocancel=yes ;
> echocancelwhenbridged=yes
> echotraining=yes ;

Instead of echotraining=yes, use echotraining=800 and don't forget
to 'stop' and restart asterisk. A simple reload won't cut it.