Metallic Path Facility (MPF)
Metallic Path Facility is Openreach's full local loop unbundling product, which gives a competitor the entire copper line for both voice and broadband.
What is Metallic Path Facility (MPF)?
With MPF, the line is physically connected to the competing provider's equipment at the exchange, and that provider supplies all services on it. It was widely used by providers such as Sky and TalkTalk.