Massachusetts E911 Legislation
Summary of Massachusetts E911 Regulations
As of July 1, 2009, all new or substantially renovated ECS such as Centrex, PBX and hybrid telephone systems must route emergency calls to the appropriate PSAP and provide ANI and ALI for every 911 call. The level of detail required for ALI data and exemptions are outlined as well. 560 CMT 4.00 et seq.