Accessories |
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Additional features to enhance the appearance or performance of mobile phones, including replacement covers, batteries, hands-free kits, car kits, cases, cameras, keyboards, desktop holders and belt clips.
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ADSL |
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Asymmetrical Digital Subscriber Line. A way of increasing transmission speed in a standard copper phone cable - generally used for high-speed, 'always on', internet access. Data flows faster in one direction (to the subscriber) than the ...
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Analogue (US: analog) |
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The method used for calls with 1G phones, which works by translating voice calls into electronic signals of different frequency and/or amplitude. In some countries, analogue services may offer better coverage than digital networks due to being b ...
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Antenna |
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The part of your phone that sends and receives radio signals. They can be external or internal, though reception capabilities can be superior with an external antenna.
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Asynchronous |
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A type of transmission in which each character is transmitted independently. It can also indicate different capacities for data transfer in each direction such as the high-speed copper wire net access of ADSL (Asynchronous Digital Subscriber Lin ...
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ATM |
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Asynchronous Transfer Mode. Broadband transmission technology used for high-capacity telecommunications signals.
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Bandwidth |
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The amount of information that a communications channel can carry. Analogue band width is measured in hertz (Hz, cycles per second). Digital bandwidth is measured in Bits Per Second (bps or b/sec).
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Base station |
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The central radio transmitter/receiver for a network within a given area, known as a cell.
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Battery |
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Power source for a mobile phone (usually rechargeable).
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Bps |
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Bits per second. Measurement of how fast digital data can travel. Also b/sec and kbps (kilobits per second).
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Broadband |
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High-speed data channel such as those offered by 3G.
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Byte |
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A single character which is made up of eight bits.
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Call barring |
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Feature which permits users to block incoming or outgoing calls.
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Call divert |
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Feature which permits users to redirect calls to another number or message service.
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Call holding |
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Feature which permits users to put a call on hold while answering another call.
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Caller ID |
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Display showing the name and/or number of the caller.
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Car kit |
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Accessory for use in cars which allows your phone to be used hands-free. Different versions may include a charger and cradle, earphones, speaker and microphone and external aerial.
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Cell |
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The signal range around each base station.
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Communicator |
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Generic name for smartphones – essentially a combined PDA and phone. The Nokia 9210 Communicator is one product which has incorporated the term into its name.
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DECT |
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Digital Enhanced Cordless Telecommunications. A common standard for mobile phones originally established in Europe.
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Digital |
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The use of Binary data to represent information. In digital wireless phone systems, voice sounds are converted (encoded) to a binary stream of data that "describes" the sound. On the other end, the digital signal is decoded and used to r ...
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Digital Modulation |
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A method of decoding information for transmission. Information, or in this case, a voice conversation is turned into a series of digital bits -- the 0s and 1s of computer binary language. At the receiving end, the information is reconverted.
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Download |
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Copying of a file or program from the internet or a computer.
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Dual band |
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A phone that can use both the 900mHz and 1800mHz frequency bands used by networks in the UK and Europe.
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Dual mode |
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Phones that can use either digital (2G and beyond) or analogue (1G) networks.
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