I have an ipod touch 8gb 2G with a headset, and I want to be able to make phonecalls with my ipod touch through my wi-fi connection. I already have fring and its sip add-on installed, but i am limited to one minute per call. Is there any other free non-hacking way to make the ipod touch make phonecalls that have no time limit and if possible a call-back number. Thanks for your suggestions.