PBX

American  

1. a manually or automatically operated telephone facility that handles communications within an office, office building, or organization and that is connected to the public telephone network.

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PBX British  

abbreviation

1. private branch exchange; a telephone system that handles the internal and external calls of a building, firm, etc

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Etymology

Origin of PBX

P(rivate) B(ranch) Ex(change)

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Example Sentences

See Examples For:

PBX

Yep, old-fashioned PBX boards picking up long-distance calls, coin-box calls, person-to-person.

From The Wall Street Journal ● May 7, 2026

It was there that he began his music career, releasing his debut album PBX 1 in October 2018 under the stage name of Sidhu Moose Wala - or "Sidhu of Moosa", his village.

From BBC ● Jul. 5, 2022

PBX 9502 is especially tricky because it’s an insensitive explosive, meaning it won’t go up if smacked or set on fire.

From Science Magazine ● Jun. 24, 2020

Secursmart has solutions for mobile to mobile as well as PBX interfaces.

From Forbes ● Jul. 30, 2014

We look to see if it's a private or business line, part of a private PBX, hours and days of usage, then who owns the line.

From Terminal Compromise: computer terrorism: when privacy and freedom are the victims: a novel by Winn Schwartau

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