Tie Line (noun) Definition, Meaning & Examples

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.
noun
  1. a telephone line between two private branch exchanges or private exchanges that may or may not pass through a main exchange
Tie Line (noun) Definition, Meaning & Examples

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