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key telephone system

   Also found in: Acronyms, Wikipedia 0.01 sec.
key telephone system
An inhouse telephone system that is not centrally connected to a PBX. Also known as a "key system," each telephone has buttons for outside lines that can be dialed directly without having to "dial 9."
key telephone system [′kē ′tel·ə‚fōn ‚sis·təm]
(communications)
A telephone system consisting of phones with several keys, connecting cables, and relay switching apparatus, which does not need a special operator to handle incoming or outgoing calls and which generally permits users to select one of several possible lines and to hold calls.


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Key Telephone systems and Keyless systems use a direct, point to point, dedicated phone line system within the organization.
Additionally, EMG's data positions NEC as the United States' second leading provider of both PBXs (systems shipped) and Key Telephone Systems (lines shipped.
Nasdaq:NIPNY) today announced that ALLTEL has agreed to distribute NEC key telephone system (KTS) products throughout its national network.
 
 
 
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