First of all, set your USB connection to ‘Data/Fax Connection’ rather than MemoryCard (Settings -> Connection -> USB Settings) and connect to the PC. Wait for Windows to install the drivers. If you don’t have a driver CD, use connect to the internet to find the latest drivers. (This works under XP, other OSes are untested).
Configure the Modem’s INIT string
Start > Settings > Control Panel > Phone and Modem Options > Choose your modem > Click Properties > Choose tab Advanced > At Extra initialization commands, enter code: AT+CGDCONT=2,”IP”,”general.t-mobile.uk” > OK
Start > Control Panel > Network Connections > New Connection Wizard > Next > Connect to the Internet > Next > Set up my connection manually > Next > Connect using a dial up modem > Next > Choose your modem > Next > Type ‘t-mobile GPRS’ > Next > Type *99***1# > Next > Type in box Username : wapuser > Type in box Password : wap > Type in box Confirm : wap > Next > Finish
These instructions may also work using the modem over Bluetooth, but you won’t have the handy advantage of charging the phone whilst using it as a modem from one cable.