Wi-Fi calling, which can fill in for a weak or nonexistent cellular connection, is available across all of the major carriers ...

To combat this, carriers began introducing Wi-Fi calling. T-Mobile and Sprint offered this feature on certain phones back in 2007 and over the years, Verizon, AT&T and other popular carriers have ...

T-Mobile has not acknowledged any interruption to its network. Anyone experiencing network issues should enable Wi-Fi calling to continue receiving calls and messages in the meantime. If you're ...