Local loop unbundling (LLU or LLUB) is the regulatory process of allowing multiple telecommunications operators to use connections from the telephone exchange's central office to the customer's premises. The physical wire connection between customer and company is known as a "local loop", and it is owned by the incumbent local exchange carrier (also referred to as the "ILEC," "local exchange," or in the United States either a "Baby Bell" or an Independent telephone company). To increase competition, other providers are granted unbundled access.
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