<b>Managed Leased Line Network (MLLN) is the data network concept that provides fully secure data communication services by Telecom Service Providers like Bharat Sanchar Nigam Limited (BSNL) in India.
It is a system by which corporate offices and business establishments can establish a truly
<i>private communication network for the purpose of transmitting and receiving information from one location to another.</i>
The media available for use by MLLN are fibre-optic lines, microwave transmission systems , satellite transmission systems, coaxial cable systems and copper lines. The terrestrial coaxial cables and copper lines , wherever used in the existing networks, will be replaced by fibre-optic lines in the near future in order to provide better quality transmission services with higher bandwidth.</b>