Code of Vermont Rules › Agency 31 - DEPARTMENT OF PUBLIC SERVICE › Sub-Agency 010 - VERMONT ENHANCED 9-1-1 BOARD › Chapter 004 - 9-1-1 REQUIREMENTS FOR ENTERPRISE COMMUNICATIONS SYSTEMS › Section 31 010 004 - 9-1-1 REQUIREMENTS FOR ENTERPRISE COMMUNICATIONS SYSTEMS

Current through June, 2024
Section 1.0
				Authority
This rule is adopted pursuant to
				  30 V.S.A. §
											7057.
Section 2.0 Purpose
The public expects that a 9-1-1 call made from any device
				  anywhere in the state will be routed to the appropriate Public Safety Answering
				  Point (PSAP) with accurate location information so that a dispatchable location
				  can be provided to emergency responders.
The purpose of this rule is to define the 9-1-1 requirements
				  for all Enterprise Communications Systems (ECS), also referred to as privately
				  owned telephone systems or multi-line telephone systems, that provide access to
				  the Public Switched Telephone Network (PSTN) for end users within the State of
				  Vermont.
Section 3.0
				Definitions
3.1 Automatic Location
				Identification (ALI) -- An enhanced 9-1-1 service capability that allows for
				the automatic display of information relating to the geographical location of
				the communication device used to place a 9-1-1 call.
3.2 Automatic Number Identification (ANI) --
				The telephone number associated with the access line from which a call
				originates.
3.3 Enterprise
				Communications Systems (ECS) -- any networked communication system serving two
				or more stations, or living units, within an enterprise. ECS includes, but is
				not necessarily limited to, circuit-switched networks (Multi-Line Telephone
				Systems (MLTS) or Legacy ECS), IP-based systems and cloud-based technology. An
				enterprise may include, but is not limited to, business entities, governmental
				agencies or facilities, shared residential facilities, and educational
				institutions.
3.4 Call Back Number
				(CBN) -- a unique telephone number that can be dialed to reconnect with the
				originator of a 9-1-1 call.
3.5
				Dispatchable Location -- the location information delivered to the PSAP by the
				ECS provider with a 9-1-1 call. The location information must consist of the
				verified street address and community name, plus additional information to
				adequately identify the location of the calling party. The additional location
				information must include floor level (if applicable) and the more granular of
				suite, apartment, or room identifier. Any single room larger than 10,000 square
				feet must include additional granular information such as number, cubicle
				number, visible signage, or other logical landmark or physical information to
				identify the location of the calling party.
3.6 Location Information Server (LIS) -- a
				functional element in an IP-capable originating network that provides locations
				of endpoints (i.e., calling device). A LIS can provide Location by-Reference,
				or Location-by-Value, and, if the latter, in geo or civic forms. A LIS can be
				queried by an endpoint for its own location, or by another entity for the
				location of an endpoint. In either case, the LIS receives a unique identifier
				that represents the endpoint, for example an IP address, circuit-ID or Media
				Access Control (MAC) address and returns the location (value or reference)
				associated with that identifier. The LIS is also the entity that provides the
				dereferencing service, exchanging a location reference for a location
				value.
3.7 Location Validation
				Function (LVF) -- a functional element that is part of a Next Generation Core
				Services (NGCS) that provides validation of a civic address against the
				authoritative 9-1-1 GIS database.
3.8 Multi-Line Telephone System (MLTS) -- A
				system comprised of common control unit(s), telephone sets, control hardware
				and software and adjunct systems providing telephone service to multiple
				end-use customers in businesses, apartments, townhouses, condominiums, schools,
				dormitories, hotels, motels, resorts, extended care facilities, or similar
				entities. This includes network and premises-based systems. e.g., Centrex,
				VoIP, as well as PBX, Hybrid, and Key Telephone Systems (as classified by the
				FCC under Part 68 Requirements) and includes systems owned or leased by
				governmental agencies and non-profit entities, as well as for profit
				businesses
3.9 National Emergency
				Number Association (NENA) - professional organization focused on 9-1-1 policy,
				technology, operations, and education issues.
3.10 Public Safety Answering Point (PSAP) --
				an emergency communications center capable of processing 9-1-1 calls.
3.11 Public Switch Telephone Network (PSTN)
				-- The interconnected set of telecommunications networks that use analog or
				Time Division Multiplexing (TDM) format to transmit voice calls between
				end-user customers and the telecommunications network.
3.12 Station -- a telephone handset, customer
				premise equipment (CPE) or calling device that is capable of initiating a call
				to 9-1-1.
3.13 Shared Residential
				ECS -- an ECS serving two or more living units.