A flaw in O2 UK's implementation of VoLTE and WiFi Calling technologies could allow anyone to expose the general location of a person and other identifiers by calling the target. The problem was ...

Wondering how to use Wi-Fi calling? Wi-Fi Calling is a feature on the iPhone that enables users experiencing reception problems to have a stronger call connection over broadband via Wi-Fi. The ...

A complementary technology to VoLTE, VoWiFi uses IMS technology to provide a packet voice service delivered over IP via a ...