O2 o users can activate the prepaid flat rate option by dialing the number 104 or by sending an SMS message with “START FLATRATE” to the number 5667. After two months the flat rate option will be cancelled automatically. Newly topped up credit is valid for six months.
The prepaid cell phone plan O2 o comes with short minimum term of one month. Users pay 15 cents per minute for calls and 15 cents per SMS message to home phones and other mobile phones in Germany. The maximum price for mobile phone calls and sending SMS messages within Germany amounts to 60 euros – thus the O2 o prepaid cell phone plan itself is a flat rate price plan for mobile phone calls and SMS. Accessing the internet via GPRS or UMTS costs 9 cents per minute.
Overviews of current cell phone plans in Germany:
Prepaid Price Plans with Single Tariff for Mobile Phone Calls
Prepaid Price Plans with Community Tariff for Mobile Phone Calls
Prepaid Price Plans with Flat Rate Tariff for Mobile Phone Calls