APPARATUS FOR USE IN TELEPHONE COMMUNICATION

摘要

A TASI system for interconnecting a transmission trunk having a first plurality of communication channels with a defined signal transmission frequency band to a second plurality of telephone communication lines, the second plurality exceeding the first plurality; and comprising: transmission apparatus at a first end of the transmission trunk including apparatus for detecting signals on the second plurality and apparatus for assigning each telephone communication line on which signals are present to an available one of the first plurality of communication channels; receiving apparatus at a second end of the transmission link including apparatus for assigning each of the first plurality carrying signals to a corresponding one of the second plurality in accordance with assignment information received from the transmission apparatus; and apparatus for communicating messages including assignment information between the transmission apparatus and the receiving apparatus in said signal transmission band in serial data form along said first plurality of communication channels.