10 relations: British Telecommunications Act 1981, BT Archives, BT Group, Conservative Party (UK), General Post Office, International direct dialing, Packet Switch Stream, Subscriber trunk dialling, System X (telephony), Telephone numbers in the United Kingdom.
British Telecommunications Act 1981
The British Telecommunications Act 1981 (1981 c.38) is an act of the Parliament of the United Kingdom that transferred the state-owned telephone network from the Post office to a new statutory corporation, British Telecommunications, branded as "British Telecom".
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BT Archives
BT Archives is an archive preserving the documentary heritage of BT and its public sector predecessors.
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BT Group
BT Group plc (trading as BT and formerly British Telecom) is a British multinational telecommunications holding company with head offices in London, United Kingdom.
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Conservative Party (UK)
The Conservative Party, officially the Conservative and Unionist Party, is a centre-right political party in the United Kingdom.
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General Post Office
The General Post Office (GPO) was officially established in England in 1660 by Charles II and it eventually grew to combine the functions of state postal system and telecommunications carrier.
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International direct dialing
International direct dialing (IDD) or international subscriber dialling (ISD) is placing an international telephone call that is dialed directly by a telephone subscriber, rather than by an telephone operator.
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Packet Switch Stream
In the United Kingdom, Packet Switch Stream (PSS) was an X.25-based packet-switched network, provided by the British Post Office Telecommunications and then British Telecommunications starting in 1980.
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Subscriber trunk dialling
Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance.
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System X (telephony)
System X was the 2nd national digital telephone exchange system to be used in the United Kingdom.
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Telephone numbers in the United Kingdom
Telephone numbers in the United Kingdom are administered by the UK government's Office of Communications (Ofcom).
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References
[1] https://en.wikipedia.org/wiki/Post_Office_Telecommunications