More information
(Duo SIM card SMART - detailed information about the service.)
Enter your PIN code to activate the SIM card in your mobile phone. Then turn your mobile off and use your PIN to activate the second SIM card in your car's radiophone. You can now make and receive calls through your car stereo. To resume service on your mobile, make sure that your radiophone is off, then just turn on your mobile phone.
The O2 Duo service is for one user only. In order to avoid any possible conflicts between Duo cards, we strongly recommend switching off your mobile phone before you switch on the radiophone, and vice versa. If you attempt to make a phone call from the second Duo card while the first one is in use, the first call will be interrupted.
If both phones are off, incoming calls will be diverted to your voice mail.