Code of Maine Rules › 65 - DEPARTMENT OF PUBLIC UTILITIES COMMISSION › 625 - EMERGENCY SERVICES COMMUNICATIONS BUREAU › Chapter 2 - REQUIREMENTS FOR THE ENHANCED 9-1-1 SYSTEM SERVICE PROVIDER AND LOCAL EXCHANGE CARRIERS › Section 625-2-1 - GENERAL PROVISIONS AND DEFINITIONS

Current through 2024-29, July 17, 2024
A.
Purpose
This Chapter contains the requirements for the Enhanced 9-1-1
				  System Service Provider and Local Exchange Carriers associated with the
				  operation of the statewide E9-1-1 system.
B.
Definitions
1.
Addressing Officer
.
				"Addressing Officer" means the designated individual appointed by the
				municipality or county for all issues involving the development and maintenance
				of address information for the E9-1-1 addressing and routing
				databases.
2.
Automatic
				Location Identification (ALI)
. "Automatic Location Identification (ALI)"
				means the automatic display at the Public Safety Answering Point (PSAP) of the
				caller's telephone number, the address/location of the telephone and
				supplementary emergency services information.
3.
ALI Discrepancy
. "ALI
				Discrepancy" means a record retrieved from the ALI Database during an actual
				E9-1-1 call with an incorrect address.
4.
Automatic Number Identification
				(ANI)
. "Automatic Number Identification" means the telephone number
				associated with the access line from which a call originates.
5.
Alternate Routing
. "Alternate
				Routing" means the capability of routing 9-1-1 calls to a designated alternate
				location if all 9-1-1 trunks are busy or out of service. The capability may be
				activated upon request or automatically, if detectable, when 9-1-1 equipment
				fails or the PSAP itself is disabled.
6.
Central Office (CO)
. "Central
				Office" means the LEC facility where access lines are connected to switching
				equipment for connection to the Public Switched Telephone Network
				(PSN).
7.
Company
				Identifier
. "Company Identifier" means a 3 to 5 character identifier
				that distinguishes the entity providing voice service to the end user. The
				company identifier registry is maintained by the National Emergency Number
				Association (NENA) in a nationally accessible database.
8.
Data Provider
. "Data
				Provider" means an entity that provides customer service records to the ALI
				Database. This entity may be the Local Exchange Carrier or another entity
				acting on the carrier's behalf.
9.
Database Management System Provider (DMSP)
. "Database Management
				System Provider (DMSP)" means the entity providing Selective Routing and/or
				Automatic Location Identification (ALI) services. This may be the same entity
				as the System Service Provider or another entity depending on contractual
				situations.
10.
Default
				Routing
. "Default Routing" means the capability to route a E9-1-1 call
				to a designated (default) PSAP when an incoming E9-1-1 call cannot be routed
				due to an ANI failure or other cause.
11.
Diverse Routing
. "Diverse
				Routing" means the practice of routing circuits along different physical paths,
				heath/technology diversity over the same route, and system diversity such as
				separate DS1s on the same T-carrier or fiber cable, in order to prevent total
				loss of 9-1-1 service in the event of a facility failure.
12.
Emergency Services Communication
				Bureau (Bureau)
. "Emergency Services Communications Bureau (Bureau)" is
				the bureau within the Public Utilities Commission authorized to develop,
				establish, and manage the statewide Enhanced 9-1-1 system in Maine, pursuant to
				 25 M.R.S.A.
				§2926.
13.
Enhanced 9-1-1
				Network
."E9-1-1 Network" means any E9-1-1 circuit or facility including
				but not limited to Central Office to E9-1-1 tandem trunks, ALI links between
				E9-1-1 tandem and ALI Database, ALI links between PSAP and ALI Database, E9-1-1
				tandem to PSAP Trunks.
14.
Enhanced 9-1-1 System
. "Enhanced 9-1-1 System" means the network,
				database and customer premise equipment required to provide Enhanced 9-1-1
				service.
15.
Enhanced 9-1-1
				Service (E9-1-1)
."Enhanced 9-1-1 service" is an emergency
				telecommunications service that automatically displays a caller's location and
				telephone number on a screen at a PSAP. This service uses the caller's
				location, not telephone exchange, to route a call to the appropriate call
				answering center known as a Public Safety Answering Point.
16.
Enhanced 9-1-1 System Service
				Provider (SP)
.The "E9-1-1 System Service Provider" is the vendor or
				vendors that provide the network, routing capabilities, databases, and
				equipment necessary to operate a statewide E9-1-1 system.
17.
Foreign Exchange
."Foreign
				Exchange" is a service that provides local phone service from a central office
				that is outside the customer's local calling area.
18.
Host-Remote
."Host-Remote" is
				the relationship between conventional central office switching equipment and a
				Remote Switching Unit in another facility which usually has limited capability
				and may not be able to function independently if connecting links from the host
				office are interrupted.
19.
Local Exchange Carrier (LEC)
. "Local Exchange Carrier (LEC)" is a
				telephone utility, as defined by
				35-A M.R.S.A.
				§102(19), that provides
				telephone exchange service or interexchange access service within a telephone
				exchange pursuant to authority granted by the Maine Legislature or the Public
				Utilities Commission. LECs include incumbent local exchange carriers (ILECS)
				and competitive local exchange carriers (CLECs).
20.
Master Street Address Guide
				(MSAG)
. "Master Street Address Guide (MSAG)" means a database of street
				names and house number ranges with their associated communities defining
				Emergency Service Zones (A defined geographical territory consisting of a
				specific combination of law enforcement, fire, and emergency medical service
				coverage areas.) and their associated Emergency Service Numbers ( a 3 or 4
				digit number used to uniquely identify an Emergency Service Zone) to enable
				proper routing of E9-1-1 calls.
21.
No Record Found
. "No Record Found" means a condition where no ALI
				information is available for display at the PSAP.
22.
P.01 Grade of Service
. "P.01
				Grade of Service" means the grade of service reflecting the probability that
				one call out of 100 during the average busy hour will be blocked. P.01 is the
				minimum recommended Grade of Service for E9-1-1 trunk groups.
23.
Public Safety Answering Point
				(PSAP)
. "Public Safety Answering Point (PSAP)" means a facility equipped
				to receive ANI/ALI and assigned the responsibility of initially receiving 9-1-1
				calls and, as appropriate, directly dispatching emergency response services or
				transferring the calls to other public or private safety agencies for
				dispatch.
24.
Public Switched
				Telephone Network (PSTN)
. "Public Switched Telephone Network (PSTN)"
				means the network of equipment, lines, and controls assembled to establish
				communication paths between calling and called parties in North
				America.
25.
Selective
				Router
. "Selective Router" means the Central Office that provides the
				tandem switching of E9-1-1 calls. It controls delivery of the voice call with
				ANI to the PSAP and provides Selective Routing, Speed Dialing, Selective
				Transfer, Fixed Transfer and certain maintenance functions for each PSAP. This
				term is also known as the Enhanced 9-1-1 Control Office or Tandem.
26.
Signaling System 7 (SS7)
.
				"Signaling System 7" means an out-of-band signaling system used to provide
				basic routing information, call set-up and other call termination functions.
				Signaling is removed from the voice channel itself and put on a separate data
				network.