Cisco Unity IP Telephony (VoIP)

[elephant007]

I'm trying to find an application that will allow me to use my TP2 as a cordless Cisco IP Telephone at work.

I have all the access I require to make this possible, I just need the software to use my WiFi connection to attach to my network at work. Anyone know where the software is located or if you can point me in the right direction to software that will allow me to make a WiFi VoIP call? It would be sweet to be able just to dial an extension from my phone...

This is a challenge between me and a co-work who happens to own an iPhone, don't worry he doesn't think the iPhone is the best thing since sliced bread as a matter of fact he would take bread over his iPhone... he's thinking about getting a TP2 (Tilt, yeah he's AT&T and I'm Sprint) or switching to A company that starts with the letter V and getting the new Driod..

Any help!?