Actually, there are a couple apps you can download that makes your ipod touch a phone. One of which is Truphone. You are required to pay for calls like using a cell, but it does work. Granted, you can only use it via wi-fi, but it gives you a dialer. Now, in order to have someone hear you talk, you'll need headphones/mic connected to the device. But I've tried it and it definitely allows you to make calls.