Main Page | See live article | Alphabetical index Switched loop: 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. Source: from Federal Standard 1037C This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.