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In telephony, a circuit that automatically releases a connection from a console or switchboard, once the connection has been made to the appropriate terminal. Note: 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 call at a time. Synonym released loop.
- Browse Related Terms: automatic switching system, Call, call control signal, call processing, circuit switching, operating time, ringaround, rotary dial, switched loop, unsuccessful call attempt