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A party line (multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers. [1] [2] [3]Party line systems were widely used to provide telephone service, starting with the first commercial switchboards in 1878. [4]
The party line letters W, R, J, and M were only used in manual exchanges with jack-per-line party lines. Montreal telephone exchange ( c. 1895 ) In contrast to the listing format MAin 1234 for an automated office with two capital letters, a manual office, having listings such as Hillside 834 or East 23, was recognizable by the format in which ...
A rural telephone number, often party line, had often up to four digits and a letter or letter and digits to indicate which of the multiple parties on the line was desired. Various methods were used to convert these to dialable numbers as dial systems replaced manual switchboards; many moderately-large cities used a 2L-4N format where "ADelaide ...
The conference call may be designed to allow the called party to participate during the call or set up so that the called party merely listens into the call and cannot speak. The more limited three-way calling is available (usually at an extra charge) on home or office phone lines. For a three-way call, the first called party is dialed.
Local Loop. In telephony, the local loop (also referred to as the local tail, subscriber line, or in the aggregate as the last mile) is the physical link or circuit that connects from the demarcation point of the customer premises to the edge of the common carrier or telecommunications service provider's network.
Zultys' primary product is its line of cloud and premises-based Zultys MX IP PBXs, which are based on SIP open standards.. Zultys IP phone systems offer features such as softphone, presence, secure chat, instant messaging, remote work, call centres, interactive voice response, automatic call distributor, automated and on-demand call-recording software, fax, integration of mobile devices into ...
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