560 CMR, § 4.05
Each operator of a multi-line telephone system shall update the ALI Database, through the local municipal coordinator, database liaison or PSALI provider or comparable provider, to update the NG911 equivalent of the ALI Database that is known as the Location Database (LDB). Each time a fixed device is moved from its location to another, the operator shall notify the local municipal coordinator, database liaison or PSALI provider or comparable provider, who shall then update the LBD as soon as practicable for new multi-line telephone systems or within one business day following completion of the relocation of an existing multi-line telephone system device. To the extent that the operator of a multi-line telephone system assigns the direct inward dialing number of the station or ERL as the ALI Database record indicator, updates to the ALI Database shall match the direct inward dialing number ALI Database record indicator. The updates shall provide valid address and callback information for such multi-line telephone system.
560 CMR, § 4.05