| 摘要 |
<p>A system for purchasing utility services by prepayment comprises: a prepayment meter for dispensing utility services; connection means for connecting an electric purse to the prepayment meter; and a selection facility for selecting a quantity of funds available in the electronic purse to be utilised for the purchase of utility services. A processor enables the prepayment meter to dispense utility services to the value of the selected quantity of funds, to decrement a credit balance in the electronic purse by the selected quantity of funds, and to accumulate the selected quantity of funds in a storage memory in the electronic purse.</p> |
