[Asterisk-Users] Dynamically disabling echo cancellation (Zap).

[Koopmann, Jan-Peter]

> Hi!  For reasons that I won't bore people with, I'd like to disable
> echo cancellation on-the-fly, depending on which DID a call came in
> on.  I've seen things like spandsp disable EC for faxes, so I know
> it's possible. Any idea where to start looking?  (I assume I'll have
> to make a helper application of some sort to be called externally,
> and that's fine.)    

If you are using bristuff you could use the m option
Dial(Zap/g1m/Number) in order to get rid of rxgain/txgain and AFAIK echo
cancellation. This has been built into bristuff esp. for faxes etc.

Regards,
  JP