Intercom Vocabulary

Partyline (PL)


the name PL (partyline) came from the original telephone systems where everyone shared the same line and could hear all conversations at once. It is often called 2-wire or TW. A partyline system allows a group of people to intercommunicate. A partyline is typically used when several users, such as beltpacks or camera intercoms, are engaged in a specific common activity and they need to talk and/or listen to each other all the time.

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