Network coverage
A cellular network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver known as a cell site orbase station. When joined together these cells provide radio coverage over a wide geographic area. This enables a large number of portable transceivers (e.g.,mobile phones, pagers, etc.) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via base stations, even if some of the transceivers are moving through more than one cell during transmission.
Cellular networks offer a number of advantages over alternative solutions:
- increased capacity
- reduced power use
- larger coverage area
- reduced interference from other signals
An example of a simple non-telephone cellular system is an old taxi driver's radio system where the taxi company has several transmitters based around a city that can communicate directly with each taxi.
A key part of any mobile phone specification is its operating frequency bands. The supported frequency bands determine whether a certain handset is compatible with a certain network carrier.
Beside the mobile phone specifications, GSMArena is happy to also provide you with its own country-based frequency band directory. It's not operator-specific and it's helpful if you are choosing a handset to use in your home country or if you are making sure your phone will work in the country you are heading to.
Making calls, sending text messages and using GPRS/EDGE mobile data connection in the country of your choice requires a mobile phone that supports at least the frequency band filled as “Required” below.
2G capabilities
| Required | GSM 900 | |
| Recommended | GSM 900 and GSM 1800 | |
3G capabilities
| Required | UMTS 2100 |
Nokia | HTC | iPhone | Samsung | Toshiba
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