Telephone line or data line that is rented by a private individual or company from a telephone company or data line provider. A leased line is always connected and does not require any special number in order to be connected. A great example of a common leased line is a T1 data line.
A service contract between a customer and provider is said to be a
leased line. Service provider agrees to provide a symmetric telecommunication
line connecting different locations whereby the consumer agrees to pay a
monthly rent. It does not have a telephone number unlike traditional PSTN
lines. Each side of the line is connected to the other. Leased lines can be
used for data, Internet, or telephone. Some connect two PBXs and some are ring
down services.
Leased lines are mostly used by businesses to
connect their distant offices. It is always active unlike dial-up connections.
A leased line is hired on a yearly basis. It may carry voice, data, or both.
The main benefits of leased lines are that they are private so the security
level is higher along with speed, reliability, and resilience
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