英文互译镜像站

Switched loop

Last updated

In telephony, a Switched loop is a circuit that automatically releases a connection from an attendant console or switchboard, once the connection has been made to the appropriate terminal.

Loop buttons or jacks are used to answer incoming listed directory number calls, dial "0" internal calls, transfer requests, and intercepted calls. The attendant can handle only one telephone call at a time. Synonym: released loop.

See also

References


网站镜像克隆 开源整站镜像工具 站点核心词加权 泛域名镜像 超级站群助手