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* Telephone Network ( 8 ): This system connected every fortification in the Maginot Line, including bunkers, infantry and artillery fortresses, observation posts, and shelters.
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Telephone and Network
In addition, as part of the first commercial implementation of DPNSS ( in the Government Telephone Network or GTN in 1983 ), BT insisted that the core of the network be made from PBXs of different manufacture to prove the interoperability in real life.
Network effects were a central theme in the arguments of Theodore Vail, the first post patent president of Bell Telephone, in gaining a monopoly on US telephone services.
The Public Switched Telephone Network ( PSTN ) has gradually evolved towards digital telephony which has improved the capacity and quality of the network.
Generically, an NID may also be called a Network Interface Unit ( NIU ), Telephone Network Interface ( TNI ), System Network Interface ( SNI ), or telephone network box.
The Primary Rate Interface channels are typically used by medium to large enterprises with digital PBXs to provide them digital access to the Public Switched Telephone Network ( PSTN ).
Public Land Mobile Networks need to connect to the Public Switched Telephone Network ( PSTN ) in order to route calls.
A PLMN may be considered as an extension of a fixed network, e. g. the Public Switched Telephone Network ( PSTN ) or as an integral part of the PSTN.
The fixed Public Switched Telephone Network relays telephone calls from land line telephones to an earth station, where they are then transmitted to a geostationary satellite.
Calls are then forwarded to a satellite teleport connected to the Public Switched Telephone Network
This led to a videotex system called Captain (" Character and Pattern Telephone Access Information Network "), created by NTT in 1978, which went into full trials from 1979 to 1981.
# Equipment installed in the PSTN ( Public Switched Telephone Network )
Generally, although not absolutely, the service provider simply passes whatever calling line ID appears on those PRI access trunks transparently across the Public Switched Telephone Network ( PSTN ).
A common architecture is to deploy banks of voice browsers attached to the Public Switched Telephone Network ( PSTN ) to allow users to interact with voice applications over the telephone.
The verification center will then route the call to the Public Switched Telephone Network, which completes the call.
Part 68 ) to allow safe connection of third-party telephone Customer-premises equipment and wiring to the Public Switched Telephone Network ( PSTN ).
#" A Reactive Telephone Message Network for the Office of the Future ", Business Communications Review, July-Aug 1980 ; " Voice Mail Arrives in the Office ", Business Week, June 9, 1980, p. 81.
When they call someone who does not use ENUM, calls complete over the Public Switched Telephone Network or PSTN in the usual manner.
The devices described here were developed for us on the analog Public Switched Telephone Network.
Calls may be placed through a public network ( such as the Public Switched Telephone Network ) provided by a commercial telephone company or a private network called a PBX.
SS7 is a digital out-of-band method of transmitting signaling ( call control ) information in the Public Switched Telephone Network ( PSTN ).
In addition to nonsecure voice, data, and video services, the DSN will provide transmission, switching, and support services for Secure Telephone Units, Third Generation ( STU-IIIs ), the Secure Terminal Equipment ( STE ), the dial-up alternative routing for the Unclassified but Sensitive Internet Protocol ( IP ) Router Network ( NIPRNet ), and the Secret IP Router Network ( SIPRNet ).
Telephone and 8
Prior to the AT & T breakup in 1984, AT & T held 89. 8 % of Pacific Telephone.
#" The Telephone Call " – 8: 03
With the development of the helium-neon laser ( He-Ne ) at the Bell Telephone Laboratories in 1962, the optics community had available a source of continuous wave electromagnetic radiation highly concentrated at a wavelength of 632. 8 nanometers ( nm ), in the red portion of the visible spectrum.
" Telephone pad " is a shorter variant with 8 turns ( corresponding to the letters on a telephone keypad ) instead of 26 turns ( one per letter of the alphabet ).
Hunter's other most important contribution, in Chubb's view, was the negotiation of the terms for acquiring the National Telephone Company's system, which saved another £ 8. 5m.
* Listed buildings: Church Street: Church of the Holy Trinity ; The Front: Bus station and shelter, Marine Hotel, Seaton Hotel ; The Green: Telephone Kiosk, 2, 7, 8, 9, 10 ( Seaton Hall Hotel ), 11, 12, 13 ; Green Terrace: 18, 19 ; South End: 5 & 6, 7, 8
On 8 July 2008, Tan was elected board director of Philippine Long Distance Telephone Co. ( PLDT )' s 11-member board, replacing Ma.
( para 8 ) In comparison with the similar US Supreme Court case of Feist Publications Inc. v Rural Telephone Service, McLachlin rejected Justice O ' Connor's " minimal degree of creativity " test but agreed with her assessment of the " sweat of the brow " approach and found it too low a requirement.
Telephone and ):
Telephone code ( when dialing Gabon internationally ): 241
* Total Number of Main Telephone Lines ( MTLs ): 994 421
* Telephone broadcasting ( 1881 – 1932 ): the earliest form of electronic broadcasting ( not counting data services offered by stock telegraph companies from 1867, if ticker-tapes are excluded from the definition ).
An English translation appeared in Arne Myskja, " On the Calculation of Switches in an Automatic Telephone System " in Telektronikk, 94 ( 2 ): 99-142, 1998.
* PLDT Communications and Energy Ventures, Inc. ( formerly called Pilipino Telephone Corporation or Piltel, which is 100 % owned by Smart Communications, which in turn is 100 % owned by PLDT ): 6. 1 %
* Intelligent Network ( IN ): BSNL offers value-added services, such as Free Phone Service ( FPH ), India Telephone Card ( Prepaid card ), Account Card Calling ( ACC ), Virtual Private Network ( VPN ), Tele-voting, Premium Rae Service ( PRM ), Universal Access Number ( UAN ).
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; Telephone system: large system ; underwent extensive upgrading during 1990s and is reasonably modern ; Telecom Egypt, the landline monopoly, has been increasing service availability and in 2006 fixed-line density stood at 14 per 100 persons ; as of 2007 there were three mobile-cellular networks and service is expanding rapidly
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