MetroPCS has become the first operator to enable voice over LTE (VoLTE) service, with the LG Connect 4G in and around Dallas, Texas being the first handset to support it. MetroPCS was also the first carrier in the U.S. to offer LTE data services, ahead of the big names like Verizon and AT&T.
Granted, the footprint is tiny and the user base is small, but it's still no easy feat to present a new(ish) technology to an established network. Right now, the LG Connect 4G is the only capable device, but Metro says that will change in "the coming weeks" along with more locations.
What should users expect? According to Metro, you'll notice clearer calls when in an LTE service area. Since these toys we have are phones, clearer calls is always a good thing. Nice work MetroPCS.