A process in which a switch matrix establishes a discrete path between two or more telephones. Each telephone call completed by the switch occupies a path ( space). Once the connection is established, the path is used continuously to transmit information.

• 一种由开关矩阵在两台或多台电话机之间建立独立通路的过程或处理方法。每台由该开关接通的电话占用一条通路(空间)。一旦接通,通路便可用来连续地传送信息。