A regulators requirement that incumbent telecoms companies allow other operators to use their local loops at wholesale rates.... more on: Local loop unbundling
LLU was mandated by the EU in December 2000. It requires those operators designated as having significant market power) to make their local networks (i.e. the telephone lines that run from a customer's premises to the local telephone exchange) available to other telecommunications companies.
Local Loop Unbundling is the process where the incumbent operator (BT or Kingston) makes its local network (the copper cables that run from customers' premises to the telephone exchange) available to other companies. Service providers are then able to upgrade individual lines using DSL technology to offer services such as always on high speed Internet access, direct to the customer.