| http://www.w3.org/ns/prov#value | - The NRM system 100 components include: a Customer Information System 120 (???CIS???) which is a database management system that stores customer information such as account numbers, customer names, billing addresses, service addresses, etc., for local services; a Number resource Management (???NRM???) system 140 responsible for supporting the telephone number (???TN???) reservation, tracking and TN
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