With this excellent GPRS Modem Dongle, you can use your mobile phone providers' SIM card to get access to the internet, MMS, SMS, and make and receive calls. Perfect for when you are away from access to a WiFi network (802.11b/g) and need to keep up to date. Simple to use just put your SIM card into the modem and then your modem into the PC. Please note: Internet access is only available if supported by your SIM card/ Network provider.