The system works perfectly with the Simulator, but with a real telephone, the modem hangs up, but the software keeps repeating the last 2-3 secs of the call for another 40 to 70 secs - the last word or two and the beep beep of the disconnect tone.
I have checked and unchecked just about everything including hardware and software end of call detection.
I think it is a software fault as there is a large number under 'duration' when the call is in progress, the software doesn't hang up after the modem does.
Any ideas?