An application supporting the croatian "Dan bez mobitela u prometu" (A day without mobile phones in traffic) campaign. By using this app you opted to actively participate in the campaign, and it lets you to reject phone calls while you're in traffic. Each phone call, while the reject is on, is automatically rejected and the SMS message to the caller of the following content is sent:
I'm driving, can't answer! Call you later! http://danbezmobitelauprometu.uhms.hr
IMPORTANT! For the application to work correctly the call divert function must not be active on your mobile phone.