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Giffgaff Limited is an MVNO, marketed as a budget service provider and flanker brand of Telefónica UK (trading as O2 UK). [ 5 ] [ 6 ] [ 7 ] The stylised 'giffgaff' brand was founded [ 8 ] [ 9 ] by Gav Thompson a former marketing executive for Telefónica UK and was launched online only, on 25 November 2009.
This spectrum came with a coverage obligation from Ofcom, and O2 is obliged to provide a mobile broadband service for indoor reception to at least 98 per cent of the UK population (expected to cover at least 99 per cent when outdoors) and at least 95 per cent of the population of each of the UK nations – England, Northern Ireland, Scotland ...
Hutchison 3G Enterprises S.A.R.L., [1] commonly known as Hutchison 3G (acronym H3G) and trading as 3 (Three), is the owner of a brand name that operates several mobile phone networks and broadband Internet providers in Hong Kong, Macau, Austria, Denmark, Indonesia, Ireland, Italy, Sweden, and the United Kingdom.
A coverage map may be produced to indicate the area in which a certain signal strength is delivered. [1] Even if it is 100% accurate (which it never is), a major factor on whether a signal is receivable depends very much on whether the receiving apparatus is sensitive enough to use a signal of that level.
When the user goes to a covered area, the noticer ceases beeping. Similarly coverage maps are often used to visualize coverage, these are produced by networks themselves as well as independent companies. Coverage noticers can be integrated in a mobile phone also and several apps exist to show coverage maps on devices, including OpenSignal.
The messages are usually sent from mobile devices via the Short Message Service Centre using the MAP protocol. The SMSC is a central routing hubs for Short Messages. Many mobile service operators use their SMSCs as gateways to external systems, including the Internet , incoming SMS news feeds, and other mobile operators (often using the de ...
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An example of an elliptical footprint with a reception area of Germany, Austria and Switzerland. The ellipses indicate the necessary antenna diameter for receiving in cm. The footprint of a communications satellite is the ground area that its transponders offer coverage , and determines the satellite dish diameter required to receive each ...