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  2. 1-5-7-1 - Wikipedia

    en.wikipedia.org/wiki/1-5-7-1

    As of December 2016 BT offers two services accessed by dialling 1571. Messages can be accessed by dialling in with an identification number, and a personal greeting can be recorded. Neither of the services can be disabled or re-enabled by the user, but must be cancelled or ordered, with a lag of several days. Answer 1571, £2.25/month.

  3. BT Smart Hub - Wikipedia

    en.wikipedia.org/wiki/BT_Smart_Hub

    The BT Ultra Smart Hub appeared visually similar to the Smart Hub, but featured a G.fast capable modem and included a BS6312 socket which subscribers to BT Digital Voice can use to attach an analogue telephone. Digital Voice launched in January 2020 as the replacement for analogue voice service, which planned to be turned off by 2025.

  4. Customer Service System - Wikipedia

    en.wikipedia.org/wiki/Customer_Service_System

    The Customer Service System (CSS) of the BT Group (previously British Telecommunications) is the core operational support system for BT, bringing in 70% of income for the company (figures from 1997). BT rolled out CSS nationally in 1989 and provided an integrated system for telephony—order handling, repair handling and billing.

  5. BT 21CN - Wikipedia

    en.wikipedia.org/wiki/BT_21CN

    The 21st Century Network (21CN) programme is the data and voice network transformation project, under way since 2004, [1] of the UK telecommunications company BT Group plc. It was intended to move BT's telephone network from the AXE/System X Public Switched Telephone Network (PSTN) to an Internet Protocol (IP) system. As well as switching over ...

  6. 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".

  7. Digital access carrier system - Wikipedia

    en.wikipedia.org/wiki/Digital_Access_Carrier_System

    Digital access carrier system (DACS) is the name used by British Telecom (BT Group plc) in the United Kingdom for a 0+2 pair gain system. Two Telspec DACS remote units mounted on a pole Usage

  8. One Per Desk - Wikipedia

    en.wikipedia.org/wiki/One_Per_Desk

    BT intended the Tonto to be a centralised desktop information system able to access online services, mainframes and other similar systems through the BT telephone network. The Tonto retailed at £1,500 at launch. OPD peripherals and software ROM cartridges were also badged under the Merlin brand. BT withdrew support for the Tonto in February 1993.

  9. BT Fusion - Wikipedia

    en.wikipedia.org/wiki/BT_Fusion

    BT Fusion was a telecommunications product available from BT Group in the United Kingdom until 1 April 2009 when it was withdrawn. [1] It "fused" together mobile telephony and, from the user's point of view, conventional landline telephony. In fact, the fixed portion of the link was provided by a Voice over IP implementation using the domestic ...