The move was intended to circumvent a lack of cellphone service in much of the Pentagon and enable easier communication between Hegseth and other Trump officials, said people familiar with the matter.

You can easily check your Wi-Fi signal's strength, right down to the exact dBm levels, on a Mac or PC computer. Signal strength is measured in decibel milliwatts (dBm ...

You can manage notifications on Signal to choose how you want your message alerts to look and sound. Signal is a secure, end-to-end encrypted messaging app that allows users to manage notifications in ...