D'apres David Floyd <david@floyd.org.uk>,
dans le forum uk.telecom.voip...
[color=blue]
> Apparently the person I call hears me fine and I can hear them OK, but I
> get an echo form my own voice and sometimes a bit of breaking up when
> both parties cross talk.[/color]

Did you adjust the line impedance settings ? Both for FXO and FXS ?