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

Rich Adamson radamson at routers.com
Thu Mar 10 05:54:16 MST 2005


Not sure what the default value is, but seems to me it was something
like 100 (for = yes). If I recall correctly from the days when this
was implemented, it represents a delay in milliseconds from the time
a zap channel is seized until the echotraining sequence is initiated.

For my system with a TDM04b, =800 does a good job. Try different values
on your system to see what the minimum value is that improves your
echo issues.

------------------------

> I thought echotraining=400 was the default?
> 
> 
> Cheers,
> Dean
> 
> 
> -----Original Message-----
> 
> > 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.





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