We're having a problem with call screening with our existing legacy system (Toshiba DK40i) which the touch-tone buttons don't work when * calls extensions. At first I had set up a 'press 1 to accept' prompt, but it won't work if the DTMF buttons aren't functioning, of course. So, a thought: Is there a way for Asterisk to listen and hear something? It doesn't have to do voice to text translations or anything so complex as that, just sense noise past a threshold and duration. Mostly, I'm just trying to sense if the user is available and at their desk. Thanks! Phil