leroyjenkens

I just downloaded a program called iCall that allows me to make phone calls from my computer. My only problem is is that I don't have a working microphone. I was wondering if there was any way to use a text to speech device to allow me to call someone, hear what they say through my speakers and I can talk to them by typing what I want to say and an electronic voice says it to them. Think there's anyway to do that?
Thanks.