Asterisk on Freerunner was: voip on Debian

Al Johnson openmoko at
Sun Apr 19 16:53:02 CEST 2009

On Sunday 19 April 2009, Nicola Mfb wrote:
> 2009/4/19 Al Johnson <openmoko at>:
> > For linphone I use Brian Code's asound.conf :
> >
> > This uses dmix and dsnoop and gives stutter-free sound in both directions
> > with linphone. It does have echo since we can't use the suppression in
> > the GSM chipset.
> Asterisk should be able to do echo suppression?

Potentially, assuming it doesn't use too much CPU. The linphone echo 
suppression option didn't seem to do anything, but I've not looked at why.

> Is this present with external headphones too? 

It shouldn't be, but I've not tried it. It might have buzz if GSM is 
transmitting too.

More information about the community mailing list