Goto Section: 9.2 | 9.4 | Table of Contents
Revised as of September 1, 2021
Goto Year:2020 |
§ 9.3 Definitions.
Terms with definitions including the “(RR)” designation are defined in
the same way in § 2.1 of this chapter and in the Radio Regulations of
the International Telecommunication Union.
911 calls. Any call initiated by an end user by dialing 911 for the
purpose of accessing an emergency service provider. For wireless
carriers, all 911 calls include those they are required to transmit
pursuant to subpart C of this part.
Alternative location information. Location information (which may be
coordinate-based) sufficient to identify the caller's civic address and
approximate in-building location, including floor level, in large
Appropriate local emergency authority. An emergency answering point
that has not been officially designated as a Public Safety Answering
Point (PSAP), but has the capability of receiving 911 calls and either
dispatching emergency services personnel or, if necessary, relaying the
call to another emergency service provider. An appropriate local
emergency authority may include, but is not limited to, an existing
local law enforcement authority, such as the police, county sheriff,
local emergency medical services provider, or fire department.
Automated dispatchable location. Automatic generation of dispatchable
Automatic Location Information (ALI). Information transmitted while
providing E911 service that permits emergency service providers to
identify the geographic location of the calling party.
Automatic Number Identification (ANI). For 911 systems, the Automatic
Number Identification (ANI) identifies the calling party and may be
used as the callback number.
Commercial mobile radio service (CMRS). A mobile service that is:
(1)(i) Provided for profit, i.e., with the intent of receiving
compensation or monetary gain;
(ii) An interconnected service; and
(iii) Available to the public, or to such classes of eligible users as
to be effectively available to a substantial portion of the public; or
(2) The functional equivalent of such a mobile service described in
paragraph (1) of this definition.
(3) A variety of factors may be evaluated to make a determination
whether the mobile service in question is the functional equivalent of
a commercial mobile radio service, including: Consumer demand for the
service to determine whether the service is closely substitutable for a
commercial mobile radio service; whether changes in price for the
service under examination, or for the comparable commercial mobile
radio service, would prompt customers to change from one service to the
other; and market research information identifying the targeted market
for the service under review.
(4) Unlicensed radio frequency devices under part 15 of this chapter
are excluded from this definition of Commercial mobile radio service.
Common carrier or carrier. Any common carrier engaged in interstate
Communication by wire or radio as defined in section 3(h) of the
Communications Act of 1934, as amended (the Act), and any common
carrier engaged in intrastate communication by wire or radio,
notwithstanding sections 2(b) and 221(b) of the Act. Communications
assistant (CA). A person who transliterates or interprets conversation
between two or more end users of TRS.
Configured. The settings or configurations for a particular MLTS
installation have been implemented so that the MLTS is fully capable
when installed of dialing 911 directly and providing MLTS notification
as required under the statute and rules. This does not preclude the
inclusion of additional dialing patterns to reach 911. However, if the
system is configured with these additional dialing patterns, they must
be in addition to the default direct dialing pattern.
Designated PSAP. The Public Safety Answering Point (PSAP) designated by
the local or state entity that has the authority and responsibility to
designate the PSAP to receive wireless 911 calls.
Dispatchable location. A location delivered to the PSAP with a 911 call
that consists of the validated street address of the calling party,
plus additional information such as suite, apartment or similar
information necessary to adequately identify the location of the
calling party, except for Commercial Mobile Radio Service providers,
which shall convey the location information required by subpart C of
Earth station. A station located either on the Earth's surface or
within the major portion of the Earth's atmosphere intended for
(1) With one or more space stations; or
(2) With one or more stations of the same kind by means of one or more
reflecting satellites or other objects in space. (RR)
Emergency Call Center. A facility that subscribers of satellite
commercial mobile radio services call when in need of emergency
assistance by dialing “911” on their mobile earth station terminals.
Feeder link. A radio link from a fixed earth station at a given
location to a space station, or vice versa, conveying information for a
space radiocommunication service other than the Fixed-Satellite
Service. The given location may be at a specified fixed point or at any
fixed point within specified areas. (RR)
Fixed-Satellite Service (FSS). A radiocommunication service between
earth stations at given positions, when one or more satellites are
used; the given position may be a specified fixed point or any fixed
point within specified areas; in some cases this service includes
satellite-to-satellite links, which may also be operated in the
inter-satellite service; the Fixed-Satellite Service may also include
feeder links of other space radiocommunication services. (RR)
Handset-based location technology. A method of providing the location
of wireless 911 callers that requires the use of special
location-determining hardware and/or software in a portable or mobile
phone. Handset-based location technology may also employ additional
location-determining hardware and/or software in the CMRS network
and/or another fixed infrastructure.
iTRS access technology. Any equipment, software, or other technology
issued, leased, or provided by an internet-based TRS provider that can
be used to make and receive an internet-based TRS call.
Improvement to the hardware or software of the system. An improvement
to the hardware or software of the MLTS, including upgrades to the core
systems of the MLTS, as well as substantial upgrades to the software
and any software upgrades requiring a significant purchase.
Interconnected VoIP service. (1) An interconnected Voice over Internet
Protocol (VoIP) service is a service that:
(i) Enables real-time, two-way voice communications;
(ii) Requires a broadband connection from the user's location;
(iii) Requires internet protocol-compatible customer premises equipment
(iv) Permits users generally to receive calls that originate on the
public switched telephone network and to terminate calls to the public
switched telephone network.
(2) Notwithstanding the foregoing, solely for purposes of compliance
with the Commission's 911 obligations, an interconnected VoIP service
includes a service that fulfills each of paragraphs (1)(i) through
(iii) of this definition and permits users generally to terminate calls
to the public switched telephone network.
Internet-based TRS (iTRS). A telecommunications relay service (TRS) in
which an individual with a hearing or a speech disability connects to a
TRS communications assistant using an Internet Protocol-enabled device
via the internet, rather than the public switched telephone network.
Except as authorized or required by the Commission, internet-based TRS
does not include the use of a text telephone (TTY) or RTT over an
interconnected voice over Internet Protocol service.
Internet Protocol Captioned Telephone Service (IP CTS). A
telecommunications relay service that permits an individual who can
speak but who has difficulty hearing over the telephone to use a
telephone and an Internet Protocol-enabled device via the internet to
simultaneously listen to the other party and read captions of what the
other party is saying. With IP CTS, the connection carrying the
captions between the relay service provider and the relay service user
is via the internet, rather than the public switched telephone network.
Internet Protocol Relay Service (IP Relay). A telecommunications relay
service that permits an individual with a hearing or a speech
disability to communicate in text using an Internet Protocol-enabled
device via the internet, rather than using a text telephone (TTY) and
the public switched telephone network.
Location-capable handsets. Portable or mobile phones that contain
special location-determining hardware and/or software, which is used by
a licensee to locate 911 calls.
MLTS notification. An MLTS feature that can send notice to a central
location at the facility where the system is installed or to another
person or organization regardless of location. Examples of notification
include conspicuous on-screen messages with audible alarms for security
desk computers using a client application, text messages for
smartphones, and email for administrators. Notification shall include,
at a minimum, the following information:
(1) The fact that a 911 call has been made;
(2) A valid callback number; and
(3) The information about the caller's location that the MLTS conveys
to the public safety answering point (PSAP) with the call to 911;
provided, however, that the notification does not have to include a
callback number or location information if it is technically infeasible
to provide this information.
Mobile Earth Station. An earth station in the Mobile-Satellite Service
intended to be used while in motion or during halts at unspecified
Mobile-Satellite Service (MSS). (1) A radiocommunication service:
(i) Between mobile earth stations and one or more space stations, or
between space stations used by this service; or
(ii) Between mobile earth stations, by means of one or more space
(2) This service may also include feeder links necessary for its
Mobile service. A radio communication service carried on between mobile
stations or receivers and land stations, and by mobile stations
communicating among themselves, and includes:
(1) Both one-way and two-way radio communications services;
(2) A mobile service which provides a regularly interacting group of
base, mobile, portable, and associated control and relay stations
(whether licensed on an individual, cooperative, or multiple basis) for
private one-way or two-way land mobile radio communications by eligible
users over designated areas of operation; and
(3) Any service for which a license is required in a personal
communications service under part 24 of this chapter.
Network-based location technology. A method of providing the location
of wireless 911 callers that employs hardware and/or software in the
CMRS network and/or another fixed infrastructure, and does not require
the use of special location-determining hardware and/or software in the
caller's portable or mobile phone.
Multi-line telephone system or MLTS. A system comprised of common
control units, telephone sets, control hardware and software and
adjunct systems, including network and premises based systems, such as
Centrex and VoIP, as well as PBX, Hybrid, and Key Telephone Systems (as
classified by the Commission under part 68 of title 47, Code of Federal
Regulations), and includes systems owned or leased by governmental
agencies and non-profit entities, as well as for profit businesses.
Non-English language relay service. A telecommunications relay service
that allows persons with hearing or speech disabilities who use
languages other than English to communicate with voice telephone users
in a shared language other than English, through a CA who is fluent in
On-premises. In the context of a multi-line telephone system, within
the fixed property (e.g. building(s), facilities, or campus) and under
the operational control of a single administrative authority.
Person engaged in the business of installing an MLTS. A person that
configures the MLTS or performs other tasks involved in getting the
system ready to operate. These tasks may include, but are not limited
to, establishing the dialing pattern for emergency calls, determining
how calls will route to the Public Switched Telephone Network (PSTN),
and determining where the MLTS will interface with the PSTN. These
tasks are performed when the system is initially installed, but they
may also be performed on a more or less regular basis by the MLTS
operator as the communications needs of the enterprise change. The MLTS
installer may be the MLTS manager or a third party acting on behalf of
Person engaged in the business of managing an MLTS. The entity that is
responsible for controlling and overseeing implementation of the MLTS
after installation. These responsibilities include determining how
lines should be distributed (including the adding or moving of lines),
assigning and reassigning telephone numbers, and ongoing network
Person engaged in the business of manufacturing, importing, selling, or
leasing an MLTS. A person that manufactures, imports, sells, or leases
Person engaged in the business of operating an MLTS. A person
responsible for the day-to-day operations of the MLTS.
Pre-configured. An MLTS that comes equipped with hardware and/or
software capable of establishing a setting that enables users to
directly dial 911 as soon as the system is able to initiate calls to
the public switched telephone network, so long as the MLTS is installed
and operated properly. This does not preclude the inclusion of
additional dialing patterns to reach 911. However, if the system is
configured with these additional dialing patterns, they must be in
addition to the default direct dialing pattern.
Private mobile radio service. A mobile service that meets neither the
paragraph (1) nor paragraph (2) in the definition of commercial mobile
radio service in this section. A mobile service that does not meet
paragraph (1) in the definition of commercial mobile radio service in
this section is presumed to be a private mobile radio service. Private
mobile radio service includes the following:
(1) Not-for-profit land mobile radio and paging services that serve the
licensee's internal communications needs as defined in part 90 of this
chapter. Shared-use, cost-sharing, or cooperative arrangements,
multiple licensed systems that use third party managers or users
combining resources to meet compatible needs for specialized internal
communications facilities in compliance with the safeguards of § 90.179
of this chapter are presumptively private mobile radio services;
(2) Mobile radio service offered to restricted classes of eligible
users. This includes entities eligible in the Public Safety Radio Pool
and Radiolocation service.
(3) 220-222 MHz land mobile service and Automatic Vehicle Monitoring
systems (part 90 of this chapter) that do not offer interconnected
service or that are not-for-profit; and
(4) Personal Radio Services under part 95 of this chapter (General
Mobile Services, Radio Control Radio Services, and Citizens Band Radio
Services); Maritime Service Stations (excluding Public Coast stations)
(part 80 of this chapter); and Aviation Service Stations (part 87 of
Pseudo Automatic Number Identification (Pseudo-ANI). A number,
consisting of the same number of digits as ANI, that is not a North
American Numbering Plan telephone directory number and may be used in
place of an ANI to convey special meaning. The special meaning assigned
to the pseudo-ANI is determined by agreements, as necessary, between
the system originating the call, intermediate systems handling and
routing the call, and the destination system.
Public safety answering point or PSAP. An answering point that has been
designated to receive 911 calls and route them to emergency services
Public Switched Network. Any common carrier switched network, whether
by wire or radio, including local exchange carriers, interexchange
carriers, and mobile service providers, that uses the North American
Numbering Plan in connection with the provision of switched services.
Real-Time Text (RTT). Text communications that are transmitted over
Internet Protocol (IP) networks immediately as they are created, e.g.,
on a character-by-character basis.
Registered internet-based TRS user. An individual that has registered
with a VRS, IP Relay, or IP CTS provider as described in § 64.611.
Registered Location. The most recent information obtained by a provider
of interconnected VoIP service or telecommunications relay services
(TRS), as applicable, that identifies the physical location of an end
Space station. A station located on an object which is beyond, is
intended to go beyond, or has been beyond, the major portion of the
Earth's atmosphere. (RR)
Speech-to-speech relay service (STS). A telecommunications relay
service that allows individuals with speech disabilities to communicate
with voice telephone users through the use of specially trained CAs who
understand the speech patterns of persons with speech disabilities and
can repeat the words spoken by that person.
Statewide default answering point. An emergency answering point
designated by the State to receive 911 calls for either the entire
State or those portions of the State not otherwise served by a local
Station. A station equipped to engage in radio communication or radio
transmission of energy (47 U.S.C. 153(k)).
Telecommunications relay services (TRS). Telephone transmission
services that provide the ability for an individual who has a hearing
or speech disability to engage in communication by wire or radio with a
hearing individual in a manner that is functionally equivalent to the
ability of an individual who does not have a hearing or speech
disability to communicate using voice communication services by wire or
radio. Such term includes services that enable two-way communication
between an individual who uses a text telephone or other nonvoice
terminal device and an individual who does not use such a device,
speech-to-speech services, video relay services and non-English relay
services. TRS supersedes the terms “dual party relay system,” “message
relay services,” and “TDD Relay.”
Text telephone (TTY). A machine that employs graphic communication in
the transmission of coded signals through a wire or radio communication
system. TTY supersedes the term “TDD” or “telecommunications device for
the deaf,” and TT.
Video relay service (VRS). A telecommunications relay service that
allows people with hearing or speech disabilities who use sign language
to communicate with voice telephone users through video equipment. The
video link allows the CA to view and interpret the party's signed
conversation and relay the conversation back and forth with a voice
Wireline E911 Network. A dedicated wireline network that:
(1) Is interconnected with but largely separate from the public
switched telephone network;
(2) Includes a selective router; and
(3) Is used to route emergency calls and related information to PSAPs,
designated statewide default answering points, appropriate local
emergency authorities or other emergency answering points.
Subpart B—Telecommunications Carriers
Goto Section: 9.2 | 9.4
Goto Year: 2020 |
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