In
telephony
Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunications services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is ...
, 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
A telephone call, phone call, voice call, or simply a call, is the effective use of a connection over a telephone network between the calling party and the called party.
Telephone calls are the form of human communication that was first enabl ...
at a time. ''Synonym'': released loop.
See also
*
Cord circuit
In telecommunications, a cord circuit is a switchboard circuit in which a plug-terminated cord is used to establish connections manually between user lines or between trunks and user lines. A number of cord circuits are furnished as part of the ...
References
*
Telephony equipment
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