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The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. Please improve this article and discuss the issue on the talk page. (December 2010) |
Phone pole with phone and mainly electric lines
Fixed telephone lines per 100 inhabitants 1997–2007
A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system. Typically this refers to 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.
In 1876 the earliest lines were single electrically conducting metal wires directly connecting one telephone to another with the Earth forming the return circuit. Later 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.
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.
Most 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.
[edit] See also
[edit] External links
 ELO (Electric Light Orchestra) - Telephone Line ELO (Electric Light Orchestra) Telephone Line A New World Record (1976) |  Telephone Line Telephone Line by ELO. Please comment on what ELO songs I should do next, I do a new one every week. And I hope you enjoy the song. |  ELO - telephone line (live) elo en vivo |  Electric Light Orchestra- Telephone Lines Cool song, can't ever forget about it. PLZ RATE AND COMMENT!!!! |  elo-telephone line telephone line Wow! My most viewed vid! Over 350000 views! Thanks for listening viewers! Keep it up :) HQ Version: www.youtube.com © SME (Sound Recording) |  ELO(9/15) - Telephone Line w/lyrics Electric Light Orchestra Telephone Line www.sonymusic.com/essentials **i do not own anything** |  ELO Electric light orchestra - telephone line HD high definition stereo ELO Electric light orchestra - telephone line 1977 |  ELO - Telephone Line Live 1977 Stereo Remaster This performance of Telephone Line was from a TV appearance. I used a separate audio source for this video. I remastered and created a stereo soundtrack from the original mono audio. This is the song that made me an ELO fan for life. I hope you enjoy this version. |  Electric Light Orchestra (ELO) "Telephone Line" (music video) From the album "A New World Record" 1976 Jeff Lynne = Genius (Long before the hysterical scene in the Adam Sandler movie "Billy Madison", this was an awesome song) If you like this video, please rate, comment, and/or subscribe, thanks :) (Also see my video for 10cc "I'm Not In Love") Lyrics: Hello. How are you? Have you been alright, through all those lonely lonely lonely lonely lonely nights That's what I'd say. I'd tell you everything If you'd pick up that telephone yeah yeah yeah Hey. How you feelin? Are you still the same? Don't you realize the things we did, we did, were all for real, not a dream? I just can't believe They've all faded out of view yeah yeah yeah yeah yeah Blue days, black nights I look into the sky (the love you need ain't gonna see you through) And I wonder why (the little things you planned ain't coming true) Oh oh Telephone Line, give me some time I'm living in twilight Oh oh Telephone Line, give me some time I'm living in twilight Ok. So no one's answering Well can't you just let it ring a little longer longer longer oh oh ooohhhhh I'll just sit tight through shadows of the night And let it ring for evermore Oh oh ooohhhhh yeah yeah yeah Blue days, black nights I look into the sky (the love you need ain't gonna see you through) And I wonder why (the little things you planned ain't coming true) Oh oh Telephone Line, give me some time I'm living in twilight Oh oh Telephone Line, give me some time I'm living in twilight Oh oh Telephone Line, give me ... |  ELO - "Telephone Line" - live 1986 MikesCreativeWorks.com The Electric Light Orchestra plays live for the first time in 4 years at the 1986 Heartbeat Charity Concert. |
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KMIR-TV
Mon, 21 May 2012 17:18:06 -0700
"Apparently when the truck came through and hit the telephone line it also inadvertently hit the electrical power line and that caused a power outage here at the tramway. That's not why we're closed. We're actually closed because the telephone line is ...
|  Recombu |
Recombu
Tue, 22 May 2012 01:54:42 -0700
'Slamming,' for those unfamiliar with the term, is where an ISP tries to transfer some or all of a customer's calls and/or their telephone line without the customer's knowledge or permission. 'Cancel Other' is a function available to ISPs to cancel ...
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Midland Daily News
Tue, 08 May 2012 14:40:42 -0700
USAPaydayLoan.com has added a new payday loan application method for prospective loan borrowers. The introduction of a 24-hour loan application phone number, located on the site's “Contact Us” page, provides a helpful option for individuals who are ...
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MarketWatch (press release)
Tue, 22 May 2012 08:05:09 -0700
A listen-only telephone line will be available at 416-644-3415 or 1-877-974-0445 (toll free). The webcast and presentations will be archived at http://www.td.com/investor/qr_2012.jsp . Replay of the teleconference will be available from 6:00 pm ET on ...
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AllAfrica.com
Mon, 21 May 2012 03:21:15 -0700
This year's theme 'Women and Girls in the ICT' goes very well with Tanzania's Internet history because it was through Marie's telephone line that the first Internet connection in the country was made possible. It is reported that Marie being a very ...
|  New York Times |
New York Times
Fri, 11 May 2012 10:00:49 -0700
... enhanced Blu-ray as part of its studio's 100th anniversary home video promotion, Doris Day and Rock Hudson play prosperous Manhattanites — she's an interior decorator, he's a Broadway songwriter — who meet cute by means of a shared telephone line.
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Waterloo Record
Fri, 18 May 2012 20:24:32 -0700
Dog attack Telephone repairman, Jason Gordon reflects on his survival after he was mauled by two Rottweilers while installing a telephone line in the backyard of a Kitchener home on May 8. KITCHENER — Jason Gordon, 35, doesn't sleep — his mind racing ...
|  WGRZ-TV |
WGRZ-TV
Sun, 20 May 2012 18:57:41 -0700
While attempting to communicate with the man, the dispatcher heard several loud bangs over the telephone line. Patrol officers responded and surrounded the home but were unable to contact the resident. Several homes in the area were evacuated along ...
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