Telefonica
Telefonica to back Windows Phone in effort to end iOS, Android duopoly
Massive Spanish wireless carrier Telefonica has announced today that it will be backing Microsoft's Windows Phone operating system
Sony planning Firefox OS phone for 2014
Thanks to partnership with Latin American carrier Telefonica
Telefonica takes on Skype with calls-over-data app
Telefonica is launching a new communications app for smartphone users to make calls and send messages using data.