[Asterisk-Users] Patching asterisk for spandsp

[Peter Svensson]

On Mon, 22 Nov 2004, Steve Prior wrote:

> Michael Welter wrote:
> >> echocancel=yes
> >> echocancelwhenbridged=yes
> >>
> > Steve Underwood says not to use echo cancel on a fax line.
> 
> Oops, you're right.  I knew I was not supposed to use echocancel, but
> somehow got these two lines backwards.

Shouldn't the echo canceler cut out when it detects the 2.1kHz guard tone? 
The comments in ecdis.h and zaptel.c seens to indicate that.

Peter