Telephone linewikipedia
A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.
telephone linephone linelinetelephone linestelephone cablephone linestelephone wirecablingtelephonetelephone wiring

Telephone number

telephone numberphone numbertelephone numbers
This is the physical wire or other signaling medium connecting the user's telephone apparatus to the telecommunications network, and usually also implies a single telephone number for billing purposes reserved for that user.
A telephone number is a sequence of digits assigned to a fixed-line telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices for data transmission via the public switched telephone network (PSTN) or other public and private networks.

Digital subscriber line

DSLdigital subscriber linexDSL
Telephone lines are used to deliver landline telephone service and Digital subscriber line (DSL) phone cable service to the premises.
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.

Public switched telephone network

public switched telephone networkPSTNtelephone network
Telephone overhead lines are connected to the public switched telephone network.
The PSTN consists of telephone lines, fiber optic cables, microwave transmission links, cellular networks, communications satellites, and undersea telephone cables, all interconnected by switching centers, thus allowing most telephones to communicate with each other.

Landline

landlinefixed linefixed-line
Telephone lines are used to deliver landline telephone service and Digital subscriber line (DSL) phone cable service to the premises.
A landline telephone (also known as land line, land-line, main line, home phone, landline, fixed-line, and wireline) is a phone that uses a metal wire or optical fiber telephone line for transmission as distinguished from a mobile cellular line, which uses radio waves for transmission.

Telephone exchange

telephone exchangeexchangescentral office
In 1878, the Bell Telephone Company began to use two-wire circuits (called the local loop) from each user's telephone to end offices which performed any necessary electrical switching to allow voice signals to be transmitted to more distant telephones. In most cases, two copper wires (tip and ring) for each telephone line run from a home or other small building to a local telephone exchange. Those wires may be connected back to two telephone overhead lines at the local telephone exchange, thus making those jacks RJ14 jacks.
Each operator sat in front of a vertical panel containing banks of ¼-inch tip-ring-sleeve (3-conductor) jacks, each of which was the local termination of a subscriber's telephone line.

Tip and ring

tip and ringpair of wirestip
In most cases, two copper wires (tip and ring) for each telephone line run from a home or other small building to a local telephone exchange.
Tip and ring are the names of the two conductors or sides of a telephone line.

Telephone plug

telephone plugtelephone jackphone jack
Inside the walls of the house—between the house's outside junction box and the interior wall jacks—the most common telephone cable in new houses is Category 5 cable—4 pairs of 24 AWG (0.205 mm²) solid copper.
Historically telephones were typically owned by the telephone company and were usually permanently wired to the telephone line.

Twisted pair

twisted pairtwisted-pairunshielded twisted pair
These wires were typically copper, although aluminium has also been used, and were carried in balanced pairs of open wire, separated by about 25 cm (10") on poles above the ground, and later as twisted pair cables. Modern lines may run underground, and may carry analog or digital signals to the exchange, or may have a device that converts the analog signal to digital for transmission on a carrier system.
By 1900, the entire American telephone line network was either twisted pair or open wire with transposition to guard against interference.

Utility pole

utility poletelephone poletelegraph pole
These wires were typically copper, although aluminium has also been used, and were carried in balanced pairs of open wire, separated by about 25 cm (10") on poles above the ground, and later as twisted pair cables. Modern lines may run underground, and may carry analog or digital signals to the exchange, or may have a device that converts the analog signal to digital for transmission on a carrier system.
The most common communication cables found on utility poles are copper or fibre optic cable (FOC) for telephone lines and coaxial cable for cable television (CATV).

Local loop

local loopsubscriber linesubscriber loop
In 1878, the Bell Telephone Company began to use two-wire circuits (called the local loop) from each user's telephone to end offices which performed any necessary electrical switching to allow voice signals to be transmitted to more distant telephones.

Registered jack

RJ11registered jackRJ45
Those wires may be connected back to two telephone overhead lines at the local telephone exchange, thus making those jacks RJ14 jacks.
It is used to implement a 25-line (or less) telephone connection such as that used in the 1A2 key telephone system.

Subscriber loop carrier

subscriber loop carriersubscriber line carriera device that converts
These wires were typically copper, although aluminium has also been used, and were carried in balanced pairs of open wire, separated by about 25 cm (10") on poles above the ground, and later as twisted pair cables. Modern lines may run underground, and may carry analog or digital signals to the exchange, or may have a device that converts the analog signal to digital for transmission on a carrier system.

Request line

request linecontest line
A request line or contest line is a telephone line which allows listeners to a radio station (or sometimes a TV station) to call the radio studio or TV studio directly.

G.hn

HomeGrid ForumG.hn/G.9960ITU-T G.hn standard
G.hn is a specification for home networking with data rates up to 2 Gbit/s and operation over four types of legacy wires: telephone wiring, coaxial cables, power lines and plastic optical fiber.

Glastonbury Festival 2008

Glastonbury Festival2008 Glastonbury FestivalGlastonbury
The logic of this reasoning seems questionable, however, as internet use is traditionally associated with youths, certainly more so than ownership of a phone line.

Asymmetric digital subscriber line

ADSLasymmetric digital subscriber lineasymmetric DSL
Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.

Modem

modemmodemsdial-up modem
A common type of modem is one that turns the digital data of a computer into modulated electrical signal for transmission over telephone lines and demodulated by another modem at the receiver side to recover the digital data.

Internet access

broadband internetbroadbandbroadband Internet access
In the early to mid-1980s, most Internet access was from personal computers and workstations directly connected to local area networks or from dial-up connections using modems and analog telephone lines.

Repeater

repeaterdigipeaterrelay
There are several different types of repeaters; a telephone repeater is an amplifier in a telephone line, an optical repeater is an optoelectronic circuit that amplifies the light beam in an optical fiber cable; and a radio repeater is a radio receiver and transmitter that retransmits a radio signal.

Radio in the United States

AmericanradioAmerican radio
Stations were connected by broadcast-quality, leased telephone lines.

Dial-up Internet access

dial-updial-up Internet accessdialup
Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line.

Verizon High Speed Internet

It allows consumers to use their telephone and Internet service simultaneously over the same telephone line while benefiting from Internet connection speeds significantly faster than dial-up.

Internet in Denmark

The former state owned telephone company TDC owns the entire last mile infrastructure in terms of copper telephone lines and the vast majority of the coaxial cable infrastructure as well.

Trellis modulation

trellis coded modulationtrellis modulationTCM
In telecommunication, trellis modulation (also known as trellis coded modulation, or simply TCM) is a modulation scheme that transmits information with high efficiency over band-limited channels such as telephone lines.