Hello,
I just started programming in c# a few months ago, i have to do a project that consists in picking up a phone call using my computer, play a .wav file and then detec the key pressed by the user on the telephone pad and according to which number he/she pressed perfom an action ( a typical IVR System). So far i can detect and answer the incoming call, play de wav file, but when i start detecting the DTMF i get an "out of time" error, as if the program is listening but no DTMF is detected...i`m using a wrapper for TAPI3, and the code seems to be fine....i was wondering if it might have something to do with the hardware and if any of you could recomend a modem that supports DTMF detection. Thank you