Local Loop Unbundling (LLU) services use ADSL phone lines, but providers use their own network rather than the BT (British Telecom) network. This means LLU providers can provide increased speeds, lower costs and greater reliability. LLU describes the provision of telecommunications circuit to a customer’s site using the incumbent operator’s copper pairs. LLU can only be delivered by another licensed operator and requires them to operate equipment located within the telephone exchange.
Typically services up to about 20Mbps can be delivered over LLU circuits, depending on the distance from the exchange and the amount of copper pairs used.