tie line

noun

, Telecommunications.

1. a line that connects two or more extensions in a PBX telephone system.
2. a private telephone channel, leased from a telephone company, that connects two or more PBX systems.

tie line

noun

1. a telephone line between two private branch exchanges or private exchanges that may or may not pass through a main exchange

Example Sentences

Yet another is the Montana-Alberta Tie Line that moves renewable energy into Canada.

From Washington Times

Several local organizations offer fishing, and the Brooklyn Bridge Park Conservancy has joined them this summer with these free drop-in rod-and-reel clinics, which teach participants how to tie line knots, bait hooks and cast.

From New York Times

He inspires memes, has his own bow tie line and has appeared on numerous television shows, including, earlier this month, alongside Arnold Schwarzenegger, National Geographic Channel’s Explorer series.

From National Geographic

If you tie line to the loop on one end, the prop locks up and takes the spin out of the line clockwise.

From Washington Times

He met his co-author when Mr. Burrows, now 24, posted a video advertising the first collection of his small-batch tie line the Windmill Club, featuring nattily attired young men sauntering around Brooklyn over a hip-hop instrumental.

From New York Times