T-Mobile USA, the fourth-largest mobile phone company in the United States, is preparing to launch a service this month that will allow people talking on their cell phones to seamlessly switch between ...

Marguerite Reardon started as a CNET News reporter in 2004, covering cellphone services, broadband, citywide Wi-Fi, the Net neutrality debate and the consolidation of the phone companies. T-Mobile USA ...

Although vendor-written, this contributed piece does not advocate a position that is particular to the author’s employer and has been edited and approved by Network World editors. Growing cellular ...