I Unlock My Bold To Use On Tmobile ... When I Was With At&t I Was Able To Do All While I Was Oon The Phone For Some Reason I Cant Do Them All On My Phone Is There A Reason For This
Yes. 3G. Or the 3rd generation in cell service. 3G allows Data and voice at the same time. ATT uses a different frequency than tmo for its 3G, so the att 3G phones will not Be 3G on tmo, only EDGE. EDGE does not allow voice+data at the same time