A mobile phone is a phone that can be carried from place to place, generally small enough to fit in one's pocket (though some early mobiles were much larger than that), and does not need to be connected to any fixed infrastructure, using radio waves to transmit the call. |
A mobile phone is a telephone that can be carried from place to place, generally small enough to fit in one's pocket (though some early mobiles were much larger than that), and does not need to be connected to any fixed infrastructure, using radio waves to transmit the call. |
Mobile phone technology is often divided into generations: 1G, 2G, 2.5G, 3G. |
Mobile phone technology is often divided into generations: 1G, 2G, 2.5G, 3G: |
Major mobile phone manufacturers include: Nokia, Ericsson, Motorola. |
Major mobile phone manufacturers include Nokia, Ericsson and Motorola. |
Many mobile phones support 'auto-roaming', which permits the same phone to be used in multiple countries. However, both countries must use the same mobile system, the same frequencies and there must be an agreement between the two countries' telephone companies. |
Many mobile phones support 'auto-roaming', which permits the same phone to be used in multiple countries. However, both countries must use the same mobile system, the same frequencies and there must be an agreement between the two countries' telephone operators. |
In the UK, mobile phones are often called simply 'mobiles'. In Germany, they are called 'Handys'. |
In the UK, mobile phones are often called simply mobiles. In Germany, they are called Handys. |
Mobile phones support not just voice calls; they can also send and receive data and faxes (if a computer is attached), sending short messages (Short Message Service), and access the WWW (see WAP). |
Mobile phones do not only support voice calls; they can also send and receive data and faxes (if a computer is attached), sending short messages (Short Message Service), and access the WWW (see WAP). |
see also Iridium |
See also: * Iridium * Telecommunication |