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A supervisor in a high-visibility vest crosses a freight yard at dusk with a compact radio at chest height.

How a Push-to-Talk Over Cellular Radio Works

A push-to-talk over cellular radio sends your voice as data over a mobile network to a server, which relays it to your group. Range is the network's coverage, not the...

How a Push-to-Talk Over Cellular Radio Works

A push-to-talk over cellular radio sends your voice as data over a mobile network to a server, which relays it to your group. Range is the network's coverage, not the...