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  2. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    EAX #1; EAX #2; EAX #3; ESU 3072 Line; FW1 (Four Wire 1 Toll Switch) GTD-3 EAX (Toll switch, NOT CCS7 capable although CCIS capable) GTD-5 EAX (Class 5 switch, many in use today, was the primary switch in former GTE exchanges. Now supported by Lucent.) GTD-120 Digital PABX; GTD-1000 Digital PABX; GTD-4600 Digital PABX; OMNI-S1 Digital PABX ...

  3. List of telecommunications companies - Wikipedia

    en.wikipedia.org/wiki/List_of_telecommunications...

    Deutsche Telekom: $120.7 [5] Germany: 6: Nippon Telegraph and Telephone ... currency conversions for 2019-2022 revenues are based on the closing currency exchange ...

  4. Deutsche Telekom - Wikipedia

    en.wikipedia.org/wiki/Deutsche_Telekom

    Deutsche Telekom AG (German pronunciation: [ˌdɔʏtʃə ˈteːləkɔm ʔaːˌɡeː] ⓘ, lit. ' German Telecom '; often just Telekom, DTAG or DT; stylised as ·T·) is a partially state-owned German telecommunications company headquartered in Bonn and the largest telecommunications provider in Europe by revenue.

  5. Telefónica Germany - Wikipedia

    en.wikipedia.org/wiki/Telefónica_Germany

    Telefónica Germany purchased E-Plus on 1 October 2014, unifying the business under O 2 brand on 3 February 2016. [1] Telefónica Germany's main competitors are 1&1 Mobilfunk , Telekom Deutschland ( Deutsche Telekom 's German private customer unit) and Vodafone .

  6. Telkom-1 - Wikipedia

    en.wikipedia.org/wiki/Telkom-1

    Telkom-1 was a geosynchronous communications satellite built by Lockheed Martin, (Sunnyvale, California), for Indonesia's state-owned telecommunications company, PT Telekomunikasi Indonesia Tbk (PT Telkom). It operated for almost 18 years, more than two years past designed lifetime of 15 years.

  7. T-Systems - Wikipedia

    en.wikipedia.org/wiki/T-Systems

    T-Systems was founded in 2000, when Deutsche Telekom acquired a 50.1% stake of debis Systemhaus, one of the largest IT services companies in Germany at the time. Most of Deutsche Telekom's existing service and IT businesses were then merged and incorporated under the control of one single company, the newly founded T-Systems.

  8. A1 Telekom Austria Group - Wikipedia

    en.wikipedia.org/wiki/A1_Telekom_Austria_Group

    The use of the name was discontinued in 2002, and the company name Telekom Austria was revived as the brand name with a new logo. [4] In June 2006, the company was split into the holding company Telekom Austria Group, with the public switched telephone network becoming Telekom Austria FixNet AG, which was later renamed Telekom Austria TA AG. In ...

  9. T-Mobile (brand) - Wikipedia

    en.wikipedia.org/wiki/T-Mobile_(brand)

    Deutsche Bundespost Telekom was renamed Deutsche Telekom AG on 1 January 1995 as part of phase two of the German communications reform. [6] This process of deregulation continued in November 1996, when DT was privatized and had the largest European IPO at the time, with the stock abbreviation 'DT 1'.