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 ...
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WiFi calling: Make calls even without a network! Learn what WiFi calling is and how it works.
What is WiFi Calling and How It Works: Sometimes, due to weak mobile network signals, call drops or poor call quality can occur. In such situations, WiFi Calling proves to be a very useful feature.
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