An economical, reliable, robust and easy to use multi-user voice communication system and method suitable for use in rapidly evolving tactical or hazardous situations continuously permits each user to hear every voice communication occurring among the other users, no matter when each user speaks, and no matter how many users try to speak at once. One may characterize this as a wearable party-line radio network, because it works like a wireless party-line telephone service in that all users continuously hear every speaker, even when speaking simultaneously. The system is transportable and operable without requiring any set-up procedure or installation of a central hub or router for controlling a varying number of users when moving. Each user carries a transceiver handset with one transmitter and two or more transceivers tuned to the other transmitters in a group.