Settings when GSM data is the selected data bearer Dial-up number - Key in the phone number and press OK. IP address - Key in the address, press */+ for a dot and press OK. You can obtain the IP address from your network operator or service provider. Authentication type - Select Secure or Normal. Data call type - Select Analogue or ISDN. Data call speed - Select the speed you want to use, or select Automatic. Automatic is only available if the currently selected data call type is Analogue. The actual data call speed depends on the service provider.