| 释义 |
centrex
中央交换机［台,分局］
Central office telephone equipment serving subscribers at one location on a private automatic branch exchange basis. The system allows such servicesas direct inward dialing, direct distance dialing, and console switchboards.
中央局的电话设备,以用户专用自动交换机方式为某一地区的用户服务。该系统允许 直接内部拨号、长途直接拨号以及控制台交换转接等。 |