From the Dialer:
1/ Dial the number of your contact in international format, beginning with + or 00.
2/ Once the number has been entered, we will indicate if the destination of your call is included in your plan. If this is not the case, you will be informed of the price per minute to that destination. The total cost of your call is then deducted from your RingOver credit.
3/ You can now make your call.