Zello is a push-to-talk app that turns any smartphone into a walkie-talkie over cell data or wifi. Crews talk on channels instead of dialing each other, with message history, transcription, and live translation built in.
It has around 5 million monthly users and a dedicated construction offering, and it's become the standard way to replace two-way radios without buying hardware. Dispatch tools let the office see and reach every crew from one screen.
Contractors running multiple crews who want instant radio-style communication on the phones everyone already has, with no new hardware to buy.
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