T-Mobile USA, the No. 4 U.S. mobile service, said on Wednesday that it is starting to offer customers a new service that uses short-range Wi-Fi networks to improve reception when needed. The U.S.

Roger Cheng (he/him/his) was the executive editor in charge of CNET News, managing everything from daily breaking news to in-depth investigative packages. Prior to this, he was on the ...

If you are a user of the T-Mobile network in the US and you have a mobile phone with supports UMA we have some good news for you. You can now make WiFi calls on your T-Mobile device that don't count ...