Local Loop Unbundling (LLU)
Local loop unbundling is the regulated process by which the dominant operator lets competing providers take over the copper line between a customer and the local exchange, so they can offer their own broadband and voice services.
What is Local Loop Unbundling (LLU)?
The local loop is the copper pair running from the customer's premises to the main distribution frame in the exchange. Under LLU, a competitor installs its own equipment in the exchange and the line is connected to it. In full unbundling (MPF), the competitor takes the whole line and provides both voice and broadband. In shared access (SMPF), the competitor provides broadband while the incumbent, or another provider, keeps supplying voice on the same line. The incumbent often provides space, power and cooling in the exchange as part of the service.