[estrov]

I currently nave a Bold2 from AT&T and would like to know if I moved to TMobile, will the phone have all the TMobile functionality including the ability to route phone calls over WiFi (UMA) and TMobile 3G.

The phone is unlocked.

[aiharkness]

Wirelessly posted

No and no. UMA requires hardware as well network features. And tmo uses different 3G frequency.

[fonejunkie]

And before you ask, NO, there is no way to change the settings... sell it on eBay and buy a device designed to work with your provider. PERIOD.