So far, T-Mobile has officially acknowledged that VoLTE is up and running in Seattle. But those in the know say that the service has been spotted in markets like New York City, Chicago, San Francisco, California, Dallas and Houston. T-Mobile has three phones that support VoLTE, the Samsung Galaxy Note 3, the Samsung Galaxy Light and the LG G Flex.
Besides the tweet from Legere, in the slideshow below you will find screenshots from a T-Mobile customer in Fremont, California, showing that VoLTE is active in that market as well.
source: @JohnLegere via TmoNews