Hi! I had some troubles when calling a Fritz!Fon ATA with pjsua - sound from Fritz! to pjsua was terrible. I found out it was an ilbc incompatibilit and it could be fixed by using "--ilbc-mode=30". But I wonder is pjsua/pjproject/pjmedia (?) not capable of detecting the frame size of incoming ilbc frames? I would think that this setting should only influent the sending of ilbc. regards klaus