6  Mobile wireless

• Mobile phones also use radio frequencies to connect both voice and data signals to the mobile provider’s network. The technology used is different to that used in LANs, but can typically support quite high data rates over a reasonable range, typically a few kilometres.
• The different types of technology are identified by ‘generations’ (e.g. 2G, 3G and 4G), with data rates improving with each generation.
• When you travel and use your smart phone to access the Internet, the mobile phone company provides the same connection service as your ISP when you are at home, but using different technology.