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A domestic single British telephone line installation will have a single master socket or line box in the premises, which is provided by BT or another service provider: this socket is the demarcation point between the customer-owned and maintained on-premises wiring, and the telephone network.
The installation of a conventional wired telephone set has four connection points, each of which may be hardwired, but more often use a plug and socket: telephone line to phone cord: The wall jack. This connection is the most standardized, and often regulated as the boundary between an individual's telephone and the telephone network.
BT Redcare is the largest supplier of alarm signalling services for security and fire in the UK. It was established over thirty years ago, and works with both the business and domestic markets. Redcare is a widely deployed service from BT, used in the UK. Redcare signalling is fitted by alarm installation companies (“installers”), then ...
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.)
In August 2015, Labour MP Chris Bryant called for Openreach to be split from BT, criticising the infrastructure and stating that it is too slow to fix faults and install new lines. [ 30 ] BT Group's acquisition of mobile phone operator EE , which received regulatory approval in October 2015, was partly funded using £1.7bn of Openreach's revenues.
BT originally stated that it would accrue annual savings of £1 billion when the transition to the new network was completed, and hoped to have over 50% of its customers transferred by 2008 (see External links below for current progress on the roll-out of optical fibre by Openreach). Capital expenditure was put at £10 billion over five years ...
DSL broadband internet connections cannot work on a DACS line as they rely on a copper pair running all the way to the telephone exchange. Since BT's traditional telephone line service is contractually only required to support voice and fax communication, BT are not obliged to remove a DACS because of problems with 56 kbit/s modems.
Its use of line-of-sight microwave transmission was particularly important during the Cold War for its resilience against nuclear attack. It was rendered obsolete, at least for normal civilian purposes, by the installation of a national optical fibre communication network with considerably higher reliability and vastly greater capacity.