Description of the illustration ''%s''prc_ro_11_31

The figure shows the rollover balance for free minutes. For rollover, the values are: the Initial_amout: 100, Cur_amt: 100, and Valid_to: 3/1. For January, the values are Initial_amt: 500, Cur_amt: 400, and Valid_to: 2/1. For February, the values are: Initial_amt: 500, Cur_amt: 500, and Valid_to: 3/1.