TITLE 83: PUBLIC UTILITIES
CHAPTER I: ILLINOIS COMMERCE COMMISSION
SUBCHAPTER f: TELEPHONE UTILITIES
PART 725 STANDARDS OF SERVICE APPLICABLE TO 9-1-1 EMERGENCY SYSTEMS
SECTION 725.101 DEFINITIONS
Section 725.101 Definitions
In the interpretation of this Part, the following definitions shall be used.
"9-1-1 system" − The geographic area that has been granted an order of authority by the Commission to use "9-1-1" as the primary emergency telephone number. [50 ILCS 750/2.19]
"9-1-1 authority" − The ETSB or qualified governmental entity that provides for the management and operation of a 9-1-1 system within the scope of those duties and powers as are prescribed by the Emergency Telephone System Act (ETSA) [50 ILCS 750].
"9-1-1 system provider " − Any person, corporation, limited liability company, partnership, sole proprietorship, or entity of any description that acts as a 9-1-1 system provider within the meaning of Section 2.18 at the ETSA by contracting to provide 9-1-1 network and database services and who has been certified by the Commission pursuant to Section 13-900 of the Public Utilities Act [220 ILCS 5/13-900].
"9-1-1 telecommunications network" or "9-1-1 traditional legacy service" − An arrangement of channels, such as loops, trunks and associated switching facilities to exchange voice and data.
"Access line" − The connecting facility between a customer's premises network interface device and the local exchange carrier's facility that provides access to the switching network for local exchange and interexchange telecommunications service.
"Act" or "ETSA" – The Emergency Telephone System Act [50 ILCS 750].
"Adjacent agencies" – Any public or private safety agencies (police, firefighting, emergency medical and ambulance services or other emergency services) whose jurisdiction is outside the 9-1-1 system jurisdiction, but that is adjacent to or touches that 9-1-1 system's boundary.
"Aid Outside Normal Jurisdiction Boundaries Agreement" − A written cooperative agreement entered into by all participating and adjacent agencies and public safety agencies providing that, once an emergency unit is dispatched to a request through a system, that unit shall render its services to the requesting party without regard to whether the unit is operating outside its normal jurisdictional boundaries.
"Audible signal" − A buzzer, bell or tone device used to alert an individual that appropriate action is required.
"Automatic alarm" or "automatic alerting device" − Any device that will access the 9-1-1 system for emergency services upon activation. [50 ILCS 750/2.14]
"ALI" or "automatic location identification" − In an E9‑1-1 system, 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.
"ANI" or "automatic number identification" − The automatic display of the 9-1-1 calling party's number on the PSAP monitor.
"Backup PSAP" − A public safety answering point that serves as an alternate to the primary PSAP for enhanced systems and is at a different location and operates independently from the primary PSAP. A backup PSAP may accept overflow calls from the primary PSAP or be activated in the event that the primary PSAP is disabled.
"Busy day" – A consecutive 24 hour period during which the greatest volume of traffic is handled in the central office.
"Busy hour" − The two consecutive half-hours each day during which the greatest volume of traffic is handled in the central office.
"Busy tone" − An audible signal indicating a call cannot be completed because the called access line is busy. The tone is applied 60 times per minute.
"Call box" − A device that is normally mounted to an outside wall of the serving telecommunications carrier central office and designed to provide emergency on-site answering by authorized personnel at the central office location in the event a central office is isolated from the 9-1-1 network.
"Call referral" − A 9-1-1 service in which the PSAP telecommunicator provides the calling party with the telephone number of the appropriate public safety agency or other provider of emergency services.
"Call relay" − A 9-1-1 service in which the PSAP telecommunicator takes the pertinent information from a caller and relays that information to the appropriate public safety agency or other provider of emergency services.
"Call transfer" − A 9-1-1 service in which the PSAP telecommunicator receiving a call transfers that call to the appropriate public safety agency or other provider of emergency services.
"Central office" − The site where switching equipment is located. A local central office, also called an end office, is the switching office where individual subscriber's access lines appear. It houses the equipment that receives calls transmitted on the local loop and routes the call over the switched network either directly to the person called, if the call is placed to a location served by the same local central office, or to another central office, if the call is placed to a customer served by a different central office.
"Circuit" – The physical connection (or path) of channels, conductors and equipment between two given points through which an electronic or optical signal may be established.
"Commission" − The Illinois Commerce Commission.
"CPE" or "customer premises equipment" − Communications or terminal equipment located in the customer's facilities/terminal equipment at a PSAP.
"Default routing" − A feature that allows emergency calls to be routed to a designated default PSAP if the incoming emergency call cannot be selectively routed due to ANI failure, garbled digits or other causes that prevent selective routing.
"Direct dispatch" − A 9-1-1 service that provides for the direct dispatch by a PSAP telecommunicator of the appropriate unit upon receipt of an emergency call and the decision as to the proper action to be taken.
"Diverse routing" – The practice of routing circuits along different physical or electrical paths in order to prevent total loss of 9-1-1 service in the event of a facility or hardware failure.
"E9-1-1 selective router" − A telecommunications carrier switching office or stand alone selective routing switch equipped with enhanced 9-1-1 service capabilities. This switch serves as an E9-1-1 selective router for emergency calls from other local offices in the 9-1-1 service area.
"Emergency call" − An emergency request for assistance made to a 9-1-1 system that requires immediate action to save a life, to report a fire, to stop a crime and/or to address any other situation as determined locally.
"Emergency service number" or "ESN" − Sometimes known as emergency service zone (ESZ). An ESN is a three to five digit number representing a unique combination of public safety agencies (police, fire and emergency medical service) designated to serve a specific range of addresses within a particular geographical area or ESZ. The term ESZ refers to the geographic area itself and is generally used only during the ESN definition process to label specific areas. The ESN facilitates the selective routing of calls to appropriate PSAPs in a traditional legacy 9-1-1 system.
"Emergency Telephone System Board" or "ETSB" − A board appointed by the corporate authorities of any county or municipality that provides for the management and operation of a 9-1-1 system within the scope of those duties and powers prescribed by ETSA. The corporate authorities shall provide for the manner of appointment, provided that members of the board meet the requirements of the statute.
"ELT" or "English language translation" − A database table that provides the names of the public safety agencies (or services) associated with an ESN/ESZ number that is displayed on the ALI screen at the PSAP.
"Enhanced 9-1-1" or "E9-1-1" − An emergency telephone system that includes dedicated network, selective routing, database, ALI, ANI, selective transfer, fixed transfer, and a call back number.
"Error ratio" − The percentage of database records that are not Master Street Address Guide valid for a specific 9-1-1 traditional legacy service system.
"Exchange" − A unit established by a telecommunications carrier and approved by the Commission for the administration of telecommunications service in a specified geographical area. It may consist of one or more central offices together with associated plant used in furnishing telecommunications services in that area. Exchanges are identified on exchange boundary maps on file with the Commission.
"Exempt lines" − Lines other than those for which a 9-1-1 surcharge may be imposed under the criteria set forth in ETSA Section 15. Exempt lines include, but are not limited to, telecommunications carrier official lines and federal government lines.
"Fixed or non-nomadic interconnected" − An interconnected voice over Internet protocol service intended to be used at a fixed service location via a fixed broadband connection.
"Forced disconnect" − A feature that allows the PSAP to release a telephone connection, even though the calling party has not yet disconnected, to avoid caller jamming of the incoming trunks.
"Geospatial Data" − Accurately references to a precise location on the earth's surface using latitude, longitude, elevation and datum that identifies the coordinate system used.
"GIS" or "Geographical Information System" − A system for capturing, storing, displaying, analyzing and managing data and associated attributes that are spatially referenced.
"Interconnected voice over Internet protocol provider" or "Interconnected VoIP Provider" −
Every corporation, company, association, joint stock company or association, firm, partnership, or individual, their lessees, trustees or receivers appointed by any court whatsoever that owns, controls, operates, manages, or provides within this State, directly or indirectly, Interconnected Voice over Internet Protocol Service VoIP service; or
The meaning prescribed in 47 CFR 9.3 [220 ILCS 5/13-234 and 13-235].
It is a service that:
Enables real-time, two-way voice communications;
Requires a broadband connection from the user's location;
Requires Internet protocol-compatible customer premises equipment; and
Permits users generally to receive calls that originate on the public switched telephone network and to terminate calls to the public switched network.
"IP" – Internet Protocol.
"IP gateway" – The point at which a circuit-switched call is encoded and repackaged into IP packets. Equipment that provides interconnection between two networks with different communications protocols.
"Local loop" − A channel between a customer's network interface and its serving central office. The most common form of loop, a pair of wires, is also called a line.
"Logging recorder" − A machine that records both sides of telephone and radio transmissions.
"Master Street Address Guide" or "MSAG" − The computerized geographical file that either consists of all street and address data or its functional equivalent (i.e., geospatial data) within the 9-1-1 system area. This database is the key to the selective routing capability of E9-1-1 systems. It matches an originating caller to a specific answering point based on the address data. The MSAG will require updating after the initial file is created.
"Mechanical dialer" − A device that either manually or remotely triggers a dialing device to access the 9-1-1 system. [50 ILCS 750/2.15]
"NENA" or "National Emergency Number Association" − The international not-for-profit organization whose purpose is to lead, assist and provide for the development, availability, implementation and enhancement of a universal emergency telephone number or system common to all jurisdictions through research, planning, publications, training and education.
"Network connection" − A voice grade communication channel directly between a subscriber and a telecommunications carrier's public switched network, without the intervention of any other telecommunications carrier's switched network, that would be required to carry the subscriber's inter-premises traffic. The connection either is capable of providing access through the public switched network to a 9-1-1 system, if one exists; or if no system exists at the time a surcharge is imposed under Section 15.3 of ETSA, would be capable of providing access through the public switched network to the local 9-1-1 system if one existed. [50 ILCS 750/2.12(a)]
"Network diagram" − A schematic flow chart that shows the actual network pieces and flow of activities in a picture.
"NG9-1-1" or "next generation 9-1-1 service" − A system comprised of managed IP-based networks, gateways, functional elements and databases that augment or replicate present day E9-1-1 features and functions and provide new capabilities. NG9-1-1 is designed to provide access to emergency services from all sources and to provide multimedia data capabilities for PSAPs and other emergency service organizations.
"On-line date" − A date that is agreed to by all parties as to when a 9-1-1 system is activated for the public.
"On-site database" − A copy of the database that resides with the local 9-1-1 authority.
"Operator services" − Any of a variety of telephone services that need the assistance of an operator or an automated "operator" (i.e., using interactive voice response technology and speech recognition). These services include collect calls, third party billed calls, and person-to-person calls.
"Order of authority" − A formal order of the Commission that authorizes public agencies or public safety agencies to provide 9-1-1 service in a geographical area.
"OSP" or "originating service provider" − A communications provider that allows its users or subscribers to originate 9-1-1 voice or non-voice messages from the public to the 9-1-1 authority.
"Outbound Notification Systems" – A community outreach tool that automatically disperses information to the public and is not considered a function or part of a 9-1-1 system (see "System").
"Overflow" − A call or position used when a call is blocked or rerouted due to excessive traffic.
"P.01 grade of service" – The probability (P), expressed as a decimal fraction, of an emergency call being blocked. P.01 is 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 9-1-1 trunk groups.
"Primary point of contact" or "9-1-1 contact person" − The individual designated by the 9-1-1 authority as the contact point for the participating telecommunications carriers.
"PBX" or "Private branch exchange" − A private telephone system and associated equipment located on the user's property that provides communications between internal stations and external networks.
"Public agency" − The State or any unit of local government or special purpose district located in whole or in part within this State that provides police, firefighting, medical or other emergency services or has authority to do so. [50 ILCS 750/2.01].
"Public safety agency" − A functional division of a public agency that provides police, firefighting, medical or other emergency services.
"Public Safety Answering Point" or "PSAP" − The initial answering location of an emergency call.
"Public Utilities Act" – 220 ILCS 5.
"Rate center" − A geographically specified area used for determining mileage and/or usage dependent rates in the public switched network.
"Secondary PSAP" − A location where an emergency call is transferred for dispatching purposes.
"Selective routing" − A system that automatically routes calls to predetermined PSAPs, based on the location of the calling telephone number.
"Service address" − The location of the primary use of the network connection or connections.
"Split exchange" − An exchange shared with more than one 9-1-1 system.
"Subscriptions" − A count of the maximum number of interconnected VoIP calls that an end-user may have active at the same time. If the interconnected VoIP provider's retail customer purchases a service (or services) that allow more than one interconnected VoIP call (excluding in-call features such as call waiting and three way calling) to be made from the customer's physical location at the same time, the number of subscriptions equals the maximum number of interconnected VoIP calls that the customer may have active at the same time. In the case of a business retail customer who purchases a service (or services) pursuant to a service agreement, the number of subscriptions equals the maximum number of interconnected VoIP calls that the customer may have active at the same time under the terms of the service agreements with that business customer.
"Surcharge" − An amount levied by the corporate authorities of any municipality or county on billed subscribers of network connections for installing and maintaining an Enhanced 9-1-1 system.
"System" − The communications equipment required to produce a response by the appropriate emergency public safety agency as a result of an emergency call being placed to 9-1-1. [50 ILCS 750/2.06a]
"System participants" – Any public or private safety agency (police, firefighting, emergency medical and ambulance services or other emergency services, pursuant to ETSA Section 4) whose jurisdiction is located within the 9-1-1 system boundaries.
"TDD" − A telecommunications device for the deaf. See "TTY."
"Telecommunications carrier" − Shall have the same meaning as specified in Section 13-202 of the Public Utilities Act, including those carriers acting as resellers of telecommunications services. For the purpose of 9-1-1 service, this definition shall include telephone systems operating as mutual concerns. A telecommunications carrier under the Public Utilities Act may provide competitive or noncompetitive local exchange telecommunications services or any combination of the two as defined in Section 13-204 of the Public Utilities Act.
"Telecommunications service" − Shall have the same meaning as specified in Section 13-203 of the Public Utilities Act.
"Telecommunicator" − A person who is trained and employed in public safety telecommunications. The term applies to complaint telephone operators, radio operators, data terminal operators or any combination of these functions in a PSAP.
"Terminal equipment" − Telephone station apparatus.
"Transfer" − A feature that allows the PSAP telecommunicator to transfer emergency calls to a specific location or secondary PSAP.
"Trunk" − A transmission path between switching units, switching centers and/or toll centers.
"TTY" or "teletypewriter" – A telegraph device capable of transmitting and receiving alphanumeric information over communications channels and capable of servicing the needs of those persons with a hearing or speech disability.
"Uninterruptible power supply" − An emergency power source that can detect any change in power line frequency or voltage and automatically compensates for these changes by supplying additional power or converting to an auxiliary power source, without any loss of voltage or frequency.
"Virtual PSAP" – A fully functional worksite that is not bound to a specific location but is portable and scalable, connecting employees to the work process in the most advantageous setting, rather than employees having to come to a centralized work location to connect to the work process.