Prepaid phones
Prepaid phone cards is a service provided by various telecom companies that sell their service in advance. When you purchase a prepaid phone card, you are paying for long distance connection time in advance. When you make calls using the phone card, the card's value is deducted based on connection fee, duration of connection, surcharges and any maintenance charges associated with the phone card.
Prepaid telephone calls are usually implemented in a telephone operators network using the intelligent network functionality. The competitive prices these operators offer are usually made possible by least cost routing and lower overheads than the larger telephone operators.
Telephone prepaid phone cards(commonly known as Phone Cards in the US and the UK) are available from nearly every newstand and drugstore. They are often the cheapest means of making long-distance or even international telephone calls. Moreover, they offer complete anonymity. Phone cards sold by retailers are live (active) when purchased by consumers. Web sites offer prepaid PINs for calling, thus there is no physical phone card. Click here for eBay!