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- Telephone_line abstract "A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system. 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. Telephone lines are used to deliver landline telephone service and Digital subscriber line (DSL) internet service to the premises. Telephone lines are connected to the public switched telephone network.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.These wires were typically copper, although aluminium has also been used, and were carried in balanced pairs 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.Often the customer end of that wire pair is connected to a data access arrangement;the telephone company end of that wire pair is connected to a telephone hybrid.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. There is a central junction box for the building where the wires that go to telephone jacks throughout the building and wires that go to the exchange meet and can be connected in different configurations depending upon the subscribed telephone service. The wires between the junction box and the exchange are known as the local loop, and the network of wires going to an exchange, the access network.The vast majority of houses in the U.S. are wired with 6-position modular jacks with four conductors wired to the house's junction box with copper wires. Those wires may be connected back to two telephone lines at the local telephone exchange, thus making those jacks RJ14 jacks. More often, only two of the wires are connected to the exchange as one telephone line, and the others are unconnected. In that case, the jacks in the house are RJ11.Older houses often have 4-conductor telephone station cable in the walls color coded with Bell System colors: red, green, yellow, black as 2-pairs of 22 AWG (0.33 mm²) solid copper; "line 1" uses the red/green pair and "line 2" uses the yellow/black pair.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.Inside large buildings, and in the outdoor cables that run to the telephone company POP, many telephone lines are bundled together in a single cable using the 25-pair color code.".
- Telephone_line thumbnail Phone_pole3.jpg?width=300.
- Telephone_line wikiPageID "946963".
- Telephone_line wikiPageLength "4346".
- Telephone_line wikiPageOutDegree "44".
- Telephone_line wikiPageRevisionID "680487861".
- Telephone_line wikiPageWikiLink 25-pair_color_code.
- Telephone_line wikiPageWikiLink Access_network.
- Telephone_line wikiPageWikiLink Aluminium.
- Telephone_line wikiPageWikiLink Analog_signal.
- Telephone_line wikiPageWikiLink Balanced_line.
- Telephone_line wikiPageWikiLink Balanced_pair.
- Telephone_line wikiPageWikiLink Bell_System.
- Telephone_line wikiPageWikiLink Carrier_system.
- Telephone_line wikiPageWikiLink Category:Local_loop.
- Telephone_line wikiPageWikiLink Category:Telecommunications_equipment.
- Telephone_line wikiPageWikiLink Category_5_cable.
- Telephone_line wikiPageWikiLink Copper.
- Telephone_line wikiPageWikiLink Data_access_arrangement.
- Telephone_line wikiPageWikiLink Digital_subscriber_line.
- Telephone_line wikiPageWikiLink Electric_Light_Orchestra.
- Telephone_line wikiPageWikiLink Electrical_conductor.
- Telephone_line wikiPageWikiLink Invoice.
- Telephone_line wikiPageWikiLink Jargon.
- Telephone_line wikiPageWikiLink Junction_box.
- Telephone_line wikiPageWikiLink Landline.
- Telephone_line wikiPageWikiLink Local_loop.
- Telephone_line wikiPageWikiLink Modular_connector.
- Telephone_line wikiPageWikiLink Point_of_presence.
- Telephone_line wikiPageWikiLink Public_switched_telephone_network.
- Telephone_line wikiPageWikiLink RJ11,_RJ14,_RJ25.
- Telephone_line wikiPageWikiLink Registered_jack.
- Telephone_line wikiPageWikiLink Subscriber_Loop_Carrier.
- Telephone_line wikiPageWikiLink Subscriber_loop_carrier.
- Telephone_line wikiPageWikiLink Telecommunication.
- Telephone_line wikiPageWikiLink Telecommunication_circuit.
- Telephone_line wikiPageWikiLink Telecommunications.
- Telephone_line wikiPageWikiLink Telephone.
- Telephone_line wikiPageWikiLink Telephone_exchange.
- Telephone_line wikiPageWikiLink Telephone_hybrid.
- Telephone_line wikiPageWikiLink Telephone_number.
- Telephone_line wikiPageWikiLink Telephone_plug.
- Telephone_line wikiPageWikiLink Tip_and_ring.
- Telephone_line wikiPageWikiLink Transmission_(telecom).
- Telephone_line wikiPageWikiLink Transmission_(telecommunications).
- Telephone_line wikiPageWikiLink Twisted_pair.
- Telephone_line wikiPageWikiLink Utility_pole.
- Telephone_line wikiPageWikiLink Wall_jack.
- Telephone_line wikiPageWikiLink Wire.
- Telephone_line wikiPageWikiLink File:Fixed_telephone_lines_per_100_inhabitants_1997-2007_ITU.png.
- Telephone_line wikiPageWikiLink File:Phone_pole3.jpg.
- Telephone_line wikiPageWikiLinkText "Telephone line".
- Telephone_line wikiPageWikiLinkText "copper lines".
- Telephone_line wikiPageWikiLinkText "copper telephone lines".
- Telephone_line wikiPageWikiLinkText "copper".
- Telephone_line wikiPageWikiLinkText "line".
- Telephone_line wikiPageWikiLinkText "lines".
- Telephone_line wikiPageWikiLinkText "local lines".
- Telephone_line wikiPageWikiLinkText "phone line".
- Telephone_line wikiPageWikiLinkText "phone lines".
- Telephone_line wikiPageWikiLinkText "pole line".
- Telephone_line wikiPageWikiLinkText "subscriber telephone lines".
- Telephone_line wikiPageWikiLinkText "telephone cable".
- Telephone_line wikiPageWikiLinkText "telephone cables".
- Telephone_line wikiPageWikiLinkText "telephone circuit".
- Telephone_line wikiPageWikiLinkText "telephone line".
- Telephone_line wikiPageWikiLinkText "telephone wire".
- Telephone_line wikiPageWikiLinkText "telephone".
- Telephone_line wikiPageWikiLinkText "wire lines".
- Telephone_line wikiPageWikiLinkText "wire-line telephones".
- Telephone_line hasPhotoCollection Telephone_line.
- Telephone_line wikiPageUsesTemplate Template:For.
- Telephone_line wikiPageUsesTemplate Template:Multiple_issues.
- Telephone_line wikiPageUsesTemplate Template:Reflist.
- Telephone_line wikiPageUsesTemplate Template:Telecommunications.
- Telephone_line wikiPageUsesTemplate Template:UTP_Cable_Standards.
- Telephone_line subject Category:Local_loop.
- Telephone_line subject Category:Telecommunications_equipment.
- Telephone_line hypernym Circuit.
- Telephone_line type Article.
- Telephone_line type BaseballLeague.
- Telephone_line type Article.
- Telephone_line type Circuit.
- Telephone_line comment "A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system. 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.".
- Telephone_line label "Telephone line".
- Telephone_line sameAs خط_هاتف.
- Telephone_line sameAs Linenn_pellgomz.
- Telephone_line sameAs Telefonlinje.
- Telephone_line sameAs Línea_telefónica.
- Telephone_line sameAs Telefoniliin.
- Telephone_line sameAs خط_تلفن.
- Telephone_line sameAs 電話回線.
- Telephone_line sameAs 전화선.
- Telephone_line sameAs m.03scm2.
- Telephone_line sameAs ٹیلی_فون_لائن.
- Telephone_line sameAs Q1373572.
- Telephone_line sameAs Q1373572.
- Telephone_line wasDerivedFrom Telephone_line?oldid=680487861.
- Telephone_line depiction Phone_pole3.jpg.
- Telephone_line isPrimaryTopicOf Telephone_line.