The U.S. operator says it started selling VoLTE handsets on Tuesday, while two South Korean carriers said they'll launch Wednesday MetroPCS said late Tuesday it had launched a commercial voice-over-LTE service, claiming a win in the international race for the next generation of mobile voice.
URL: http://www.topix.com/com/android/2012/08/metropcs-claims-worlds-first-voice-over-lte-service?fromrss=1
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