Internet Leased Line
A leased line is a private bidirectional or symmetric telecommunications circuit between two or more locations provided in exchange. An Internet leased line is a premium internet connectivity product, normally delivered over fiber, which provides uncontested, symmetrical speeds with full duplex. It is also known as an Ethernet leased line, dedicated line, data circuit or private line.
As demand grew on data network telcos started to build more advanced networks using packet switching on top of their infrastructure. Thus, a number of telecommunication companies added ATM, Frame-relay or ISDN offerings to their services portfolio. Leased lines were used to connect the customer site to the telco network access point.