Telecommunications in the United Kingdom

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Until 1982, the main civil telecommunications system in the UK was a state monopoly known as Post Office Telecommunications. Broadcasting of radio and television was a duopoly of the BBC and Independent Broadcasting Authority (IBA): these two organisations controlled all broadcast services, and directly owned and operated the broadcast transmitter sites. Mobile phone and Internet services did not then exist.

The civil telecomms monopoly ended when Mercury Communications arrived in 1983. The Post Office system evolved into British Telecom and was privatised in 1984.

Broadcast transmitters, which belonged to the BBC and IBA, were privatised during the 1990s and now belong to National Grid Wireless, VT Communications and Arqiva.

Regulation of communications has changed many times during the same period, and most of the bodies have been merged into Ofcom, the independent regulator and competition authority for the UK communications industries [1].

Contents 1 Infrastructure 1.1 Domestic Trunk Infrastructure 1.2 International Trunks 1.3 Broadcast Transmission 1.4 Fixed Phone Lines 1.5 Mobile Phone Networks 1.5.1 First and Second Generation Networks 1.5.2 Third Generation Networks 2 Services 2.1 Telephones 2.1.1 Fixed Telephones 2.1.2 Mobile Telephones 2.1.3 Numbering 2.2 Television and Radio Broadcasting 2.2.1 Radio 2.2.2 Television 2.3 Internet 3 See also 4 Sources

[edit] Infrastructure

Communications in the United Kingdom
Radio broadcast stations (1998)	663
Telephone lines (2002)	35m
Internet access
Percent household access (total), 2004	52% of households (12.6 million)
Percent broadband household access	Half of internet connections
Internet Service Providers (1999)	364
country code top-level domain	.uk

[edit] Domestic Trunk Infrastructure

All communications trunks are now digital. Most are carried via national optical fibre networks. There are several companies with national fibre networks, including BT, Virgin Media, Cable & Wireless, Easynet and Thus. Microwave links are used up to the 155 Mbit/s level, but are seldom cost-effective at higher bit rates.

[edit] International Trunks

The UK is a focal point for many of the world's submarine communications cables, which are now mostly digital optical fibre cables. There are many satellite links too, but these now provide a relatively small part of the international bandwidth.

[edit] Broadcast Transmission

Most broadcasting organisations, BBC and commercial, lease transmission facilities from one or more of the transmission companies. The main exception is the smaller local radio stations, some of which find it more cost-effective to provide their own.

[edit] Fixed Phone Lines

BT is still the main provider of fixed telephones lines, both POTS and ISDN, and it has a universal service obligation.

Virgin Media is the second biggest player in the residential telephone line market.

Other companies provide fixed telephone lines too, but mainly to large companies in the major cities.

There are many other providers who sell fixed telephone services carried over BT lines. They have no network infrastructure of their own.

[edit] Mobile Phone Networks

[edit] First and Second Generation Networks

• O2: originally (BT) Cellnet, this company ran one of the two original ETACS analogue mobile phone networks, which has now closed. It now runs a GSM-900 network.
• Vodafone: this company ran one of the two original ETACS analogue mobile phone networks, which has now closed. It now runs a GSM-900 network.
• Orange: runs a GSM-1800 network
• T-Mobile: originally called One-2-One, this network is also GSM-1800

[edit] Third Generation Networks

The four 2G companies all won 3G licences in a competitive auction, as did a new entrant known as 3. They have now rolled out their networks.

The 3rd generation stems from technological improvements and is in essence an improvement of the available bandwidth, enabling new services to be provided to customers.

Such services include streaming of live radio or video, video calls and live TV.

A new technology was announced and demonstrated at 3GSM in Cannes by Nortel in association with Orange in 2005: HSDPA (High Speed Downlink Packet Access), potentially enabling bandwidth of up to 8 Mbit/s in the future.

[edit] Services

[edit] Telephones

[edit] Fixed Telephones

In the United Kingdom, there are 35 million (2002) main line telephones.

The telephone service in the United Kingdom was originally provided by private companies and local city councils, but by 1912,–13 ^[1] all except the telephone service of Kingston upon Hull, Yorkshire and Guernsey had been bought out by the Post Office. Post Office Telephones also operated telephone services in Jersey and the Isle of Man until 1969 when the islands took over responsibility for their own postal and telephone services.

Post Office Telephones was reorganised in 1980–81 [2] as British Telecommunications (British Telecom, or BT), and was the first nationalised industry to be privatised by the Conservative government. The Hull Telephone Department was itself sold by Hull City Council as Kingston Communications in the late 1990s and celebrated its centenary in 2004.

[edit] Mobile Telephones

As of January 2005, there are now more mobile phones than people - over 55 million - in the UK. However, this does not compare with Luxembourg, which has achieved 133% market penetration. ^[2]

Each of the five network operators (see Infrastructure above) sells mobile phone services to the public. In addition, Virgin Mobile sells a service using network capacity bought from T-Mobile.

[edit] Numbering

Main article: UK telephone numbering plan

There is a set numbering plan for phone numbers within the United Kingdom, which is regulated by the Office of Communications (Ofcom), which replaced the Office of Telecommunications (Oftel) in 2003. Each number consists of an area code - one for each of the large cities and their surroundings - and a subscriber number - the individual number.

[edit] Television and Radio Broadcasting

[edit] Radio

Main article: Radio in the United Kingdom

As of 1998, there are 663 radio broadcast stations: 219 on AM, 431 on FM and 3 on shortwave. There are 84.5 million radio receiver sets (1997).

[edit] Television

Main article: British television

As of 1997, there are 30.5 million television sets.

There are five major analogue networks - BBC One, BBC Two, ITV, Channel 4 and Five. Other networks include BSkyB and UKTV. The major cable television company is Virgin Media, and the digital terrestrial television company Freeview.

[edit] Internet

The country code top-level domain for United Kingdom web pages is .uk. Nominet UK is the .uk Network Information Centre and second-level domains must be used.

At the end of 2004, 52% of households (12.6 million) were reported to have access to the internet (Source: Office for National Statistics Omnibus Survey). broadband connections accounted for 50.7% of all internet connections in July 2005 ^[3], with one broadband connection being created every ten seconds ^[4]. Broadband connections grew by nearly 80% in 2004. As of 1999, there are 364 Internet Service Providers (ISPs). Public libraries also provide access to the internet, sometimes for a fee.

See also: Broadband Internet access worldwide#United Kingdom

[edit] See also

• UK topics
• List of postcode areas in the United Kingdom - (about 120)
• List of postal districts in the United Kingdom - (about 2900)

[edit] Sources

• CIA World Factbook

1. ^ http://www.bt.com/archives/history/19121923.htm
2. ^ http://www.text.it/mediacentre/default.asp?intPageId=749
3. ^ http://news.bbc.co.uk/1/hi/technology/4696613.stm
4. ^ http://news.bbc.co.uk/2/hi/technology/4110733.stm