MS Code § 19-5-359 (2020)
2020 Mississippi Code|Title 19 - Counties and County Officers|Chapter 5 - Health, Safety and Public Welfare|Emergency Telecommunications; Board; Standards and Training; Basic and Enhanced 911|§ 19-5-359. Requirement of service suppliers and other parties to provide access to basic or enhanced 911 service; time to comply

  Any service supplier operating within the State of Mississippi shall be required to provide access to the locally designated PSAP by dialing the three (3) digits "911" from any telephone subscriber line within such service area. Where technically available, each service supplier shall, at a county's request, provide "Enhanced 911" services. Where this capability does not technically exist, "Basic 911" shall be available as a minimum.   From and after December 31, 1993, any person, corporation or entity operating a "shared tenant service" type of telephone system shall be required to provide as a minimum the location and telephone number information for each and every extension or user on such "shared tenant" system to the regulated local exchange telephone service provider where the service provider can utilize such information in the delivery of "Enhanced 911" emergency telephone service. This information shall consist of data in a format that is compatible with the service supplier's requirements in order to provide such location and telephone number information automatically in the event a call to 911 is placed from such a system. It shall be the responsibility of the operator or provider of "STS" telephone services to maintain the data pertaining to each extension operating on such system.   Any CMRS providers operating within the State of Mississippi shall be required to have all trunks or service lines supplying all cellular sites and personal communications network sites contain the word "cellular" in the service supplier listing for each trunk or service line to facilitate operator identification of cellular and PCN telephone calls placed to 911.   Any service suppliers engaged in the offering or operating of "Centrex" or "ESSX" telephone service within the State of Mississippi shall cause the actual location of all extensions operating in this service to be displayed at the PSAP whenever a 911 call is placed from said extension. This feature shall not be required in areas where Enhanced 911 is not in operation but shall be required should such area upgrade to Enhanced 911 service.   Any local exchange telephone service suppliers offering "quick-serve" or "soft" dial tone shall provide address location information to the PSAP operating in the area where the "quick-serve" or "soft" dial tone is in operation so that the PSAP may have this address information displayed should a call to 911 be placed from such location. It shall be the responsibility of the service supplier to determine in which emergency service number area the "quick-serve" or "soft" dial tone is located.   Any service suppliers operating within the State of Mississippi and providing Enhanced 911 telephone service shall have a reasonable time period, not to exceed five (5) years, to comply with data and operational standards as they are set forth by the National Emergency Number Association. This time period shall apply to data format, equipment supplied for PSAP use and for the length of time required for data updates relating to service user address information, emergency service number updates and other data updates as may be required.