Ok - Awesome idea and project. I just tested it out and it worked great but I did have one bit of feedback. To make it more realistic, you should let the call

Ok - Awesome idea and project. I just tested it out and it worked great but I did have one bit of feedback. To make it more realistic, you should let the call run a bit longer. For example, on my phone with the volume up in a quiet room you can hear the beep when the call ends. With this service the call ends quite abruptly. Perhaps let it run for a few seconds though I am not sure if this would incur any cost on your side?