T-Mobile USA is making a big bet on Wi-Fi, offering unlimited voice calls and text messaging over any Wi-Fi network on every new smartphone it sells, including on networks outside the U.S.
Back-end technology that AT&T implemented partly for VoLTE (voice over LTE) will help make the Apple Watch and other connected devices useful.
Box and AT&T plan to lock down cloud file-sharing with a service that places enterprise content behind an AT&T VPN.
The tables could turn by the end of this year in the drama of the U.S. mobile underdogs, with T-Mobile possibly passing Sprint to become the third-largest carrier in the country.
Marcelo Claure, Sprint's incoming CEO, knows how to corner a market and make billions doing behind-the-scenes tasks that are pretty unglamorous -- except when he's on stage with J. Lo.
Sprint is giving up its plan to acquire T-Mobile USA and will name a new CEO as soon as Wednesday, according to several news reports.
Telefónica has submitted an offer for Brazilian telecom operator GVT (Global Village Telecom) worth €6.7 billion (US$9 billion), as it seeks to build up its business in Brazil by integrating mobile and fixed broadband with pay-TV services.
Early one morning in April last year, someone accessed an underground vault just south of San Jose, California, and cut through fiber-optic cables there. The incident blacked out phone, Internet and 911 service for thousands of people in Silicon Vall...
A bill that allows consumers to unlock their cellphones for use on other carriers passed its last hurdle in Congress on Friday, opening the way for it to become law once it is signed by President Barack Obama.
A majority of AT&T's new smartphone customers are now choosing a plan where they pay for their phones over time, helping to drive strong second-quarter financial results, the carrier said.
More European mobile operators should offer free international roaming, following the example set by U.S. operator T-Mobile, a European Commission vice president said Monday.
The German government is reportedly dropping Verizon Communications as a service provider because of worries about U.S. spying.
China has posted a big drop in SMS messaging as local mobile phone users are increasingly choosing mobile messaging apps to share information.
The total amount of data handled by wireless carriers in the U.S. more than doubled in 2013, an increase driven in large part by video traffic.
In the hunt for more spectrum to speed up mobile networks, Vodafone and Huawei Technologies have successfully tested a technology that lets LTE and GSM share the same frequencies.
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