For our application, it is not a requirement that the user uses the PC as an audio gateway. Ideally, we simply want the PC to notify the user when there is an incoming call and what is the caller id of that call. Additionaly, we would like the PC to be able to place calls through the phone. I was able to accomplish this using the above sample on the Samsung phone. However, the Motorola phone would continually return ERROR with the exact same phone. Does this just mean that certain phones are incompatible? We would really like a solution that covers the majority of phones out there. Is there any way to accomplish this, or is it just too device specific at this point? If this is a very complex task, my company maybe willing to pay for some custom software development.