I started playing around with the C4F samples, mainly with Telephony API. Everthing worked seamless except the playback-recording stuff
I couldn't put to work a simple .wav playback so I just went to try the "Telephony Application" sample provided with the library. It also didn't work
I tried with a simple file that I recorded and later with the windows startup sound. On a Vista machine and after on a different PC with XP SP2 and different modem...
I'm calling the PC line, answering, and then browse the sound file, select it, and hit "Play".
It seems that it is really a bug of the library...
Someone experienced the same or found a workaround?