T-Mobile Launches HD Voice
T-Mobile today announced the immediate nationwide launch of HD Voice service across its entire network, a first in the U.S. The service promises dramatic audio quality improvement during phone calls. The service requires an HD Voice-capable phone at each end of the phone call. T-Mobile already offers several phones compatible with the service, including the HTC One S, Nokia Astound, and Samsung Galaxy S III. Sprint launched HD Voice last year, although only on parts of its network that have been upgraded to new tower equipment, a project still in progress.
Is iPhone 5 capable of HD Voice?