T-Mobile US launches VoLTE in Seattle

One-upping AT&T and Verizon, T-Mobile US announced it has launched Voice over LTE (VoLTE) service in Seattle with support for three devices.

T-Mobile’s statement came in a blog posting from CTO Neville Ray.  Devices supported at launch are the LG G Flex, Samsung Galaxy Note 3 and Galaxy Light, with devices currently in customer hands requiring the latest over-the-air software upgrade.

One feature highlighted in today’s announcement is Enhanced Single Radio Voice Call Continuity (eSRVCC), the first deployment in the U.S., claims Ray.  The technology is designed to ensure calls aren’t dropped when moving between LTE, HSPA, and 2G networks. 

No details were provided on future devices to be supported or new city to be turned p other than “T-Mobile’s engineering team is working tirelessly” to launch VoLTE in additional cities and more devices. 

The “Un-carrier” may be looking to finish its VoLTE deployment before Verizon and at the same time as AT&T, but T-Mobile won’t state such a goal out loud.

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