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  2. KX telephone boxes - Wikipedia

    en.wikipedia.org/wiki/KX_telephone_boxes

    KX100 telephone box with 1991 branding. The KX series of telephone boxes in the United Kingdom was introduced by BT (British Telecom) in 1985. Following the privatisation of BT in 1984, the company decided to create a newly designed and improved take on the British telephone box, which at this point consisted of only red telephone boxes which BT had recently acquired, the most common being the ...

  3. Nortel Norstar - Wikipedia

    en.wikipedia.org/wiki/Nortel_Norstar

    The Nortel Norstar, previously the Meridian Norstar, was a small and medium-sized business digital key telephone system introduced by Nortel (formerly Northern Telecom) and later sold to Avaya. It featured automatic call distribution, and supported up to 192 extensions. In the United Kingdom it was sold by British Telecom, rebadged as the BT ...

  4. BT Smart Hub - Wikipedia

    en.wikipedia.org/wiki/BT_Smart_Hub

    With each BT Home Hub released up to 2.0, a new phone model was made to accompany it: BT Home Hub 1.0: was supplied with the BT Hub Phone 1010; BT Home Hub 1.5: was supplied with the BT Hub Phone 1020 (The only difference between the 1010 and the 1020 was the lack of the colour screen and supporting features on the 1020.)

  5. British telephone socket - Wikipedia

    en.wikipedia.org/wiki/British_telephone_socket

    This plate is fitted by the consumer inside the NTE 5 and reduces interference carried by the 3rd (bell) wire. The reduced interference allows faster broadband speeds - BT claim a speed improvement of up to 1.5 Mbit/s with a theoretical 4 Mbit/s. By November 2009 BT were calling the I-plate a "BT Broadband Accelerator".

  6. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    Marconi System X originally developed by the British Post Office (later BT), GEC, Plessey and STC, is a type of digital exchange used by BT Group in the UK public telephone network. A digital exchange (Nortel DMS-100) used by an operator to offer local and long-distance services in France. Each switch typically serves 10,000–100,000 ...

  7. Telephone keypad - Wikipedia

    en.wikipedia.org/wiki/Telephone_keypad

    For example, in the UK, users can order a 7:30 am alarm call from a BT telephone exchange by dialing: 55 0730#. [8] In the Americas and a number of other countries, most dials and, later, keypads also bear letters according to the following system: A standard telephone keypad

  8. System Y - Wikipedia

    en.wikipedia.org/wiki/System_Y

    System Y is the terminology used by BT, the main operator of the telephone network in the United Kingdom, to refer to the Ericsson AXE digital switching system.. In the mid-1980s, British Telecom chose the well established AXE10 digital switch to provide competition for System X developed by a consortium of Plessey, General Electric Company (GEC) (companies later combined as GPT), STC and BT's ...

  9. Business telephone system - Wikipedia

    en.wikipedia.org/wiki/Business_telephone_system

    The modern key system now supports SIP, ISDN, analog handsets (in addition to its own proprietary handsets – usually digital) as well as a raft of features more traditionally found on larger PBX systems. Their support for both analog and digital signaling, and of some PBX functionality gives rise to the hybrid designation. [6]

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