[Asterisk-Users] Reduce echo?

[Gijsbert van den Brink]

Just a thought here..
There is software echo cancellation support in zaptel, right?
Wouldn't it be possible to use the echo canceller of zaptel with chan_capi?

btw. the normal Eicon Diva PCI doesn't support capi echo cancellation, only
the (more expensive) Voice editions do.

> There's nothing you can do with that setup to reduce echo.
>
> Some of the Eicon Diva Server cards do support echo cancellation.
> There will still be echo on these cards for a few moments while the
> echo cancellation sets up.  Because CAPI is a high-latency interface,
> this is unavoidable.
>
> On Thu, May 01, 2003 at 09:58:14PM +0200, Patrick wrote:
> > Just installed Asterisk+samples from yesterday's cvs with an ISDN card
> > (passive, Cologne HFC chipset, HiSax driver). When I leave a voicemail
> > for extension 1234 the echo is horrible. Is there a way to reduce the
> > echo in this setup?
> >
> > Probably buying a decent card like an Eicon Diva PCI and use chan_capi
> > drivers with echo_cancellation=on would improve things but I do not have
> > that card right now :)
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