A private trunk line that connects two PBXs across a wide area.
Private-line communications channel of the type provided by communications common carriers for linking two or more points together, typically PBXs. Also called tie trunk.
A dedicated telecommunications circuit between two points.
a dedicated circuit linking two points without having to dial the normal phone number
A private communication link for linking two systems together.
Private line communications channel provided by communications carriers that link two or more points together.
A horizontal line constructed across a two phase region of a binary phase diagram; its intersections with the phase boundaries on either end represent the equilibrium conditions of the respective phases at the temperature in question.
Circuit which connects two or more control areas or systems of a power system.
A private line between the ACD and PBX enabling call transfers.
A private circuit that connects two ACDs or PBXs across a wide area.
A telephone line which is dedicated to connecting two points and which requires a minimum human intervention to achieve communication.
Any circuit that connects one PBX to another