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What is Private Line mean?
In telecommunication, a private line is typically a telephone company service that uses a dedicated, usually unswitched point-to-point circuit, but it may involve private switching arrangements, or predefined transmission physical or virtual paths. Most private lines connect only two locations, but some have multiple drop points. If the circuit is used for interconnecting switching systems, including manual switchboards, it is often called a tie line.
Among subscribers to the public switched telephone network, the term private line is often erroneously used to describe an individual telephone line for service for only one subscriber, as opposed to a party line with multiple stations connected.
In radio or wireless telephony, Private Line is a term trademarked by Motorola to describe an implementation of a Continuous Tone-Coded Squelch System (CTCSS), a method of using low-frequency subaudible tones to share a single radio channel among multiple users. Each user group would use a different low frequency tone. Motorola's trade name, especially the abbreviation PL, has become a genericized trademark for the method. General Electric used the term Channel Guard to describe the same system and other manufacturers used other terms.
A later digital version of a private line is called digital private line (DPL).
Advantages of private lines are:
High security as one dedicated link is providedAlways availableInstant data transmission referencePosted on 12 Nov 2024, this text provides information on Miscellaneous in Telecommunication related to Telecommunication. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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