How is OS different from a Prepaid calling card?
Prepaid calling cards require prepayment for cards before users can take possession and use them. Prepaid cards are like cash. Also, prepaid calling card programs can run into tens of thousands of dollars to launch. Unlike prepaid cards, we make OS cost effective and easy for you. Users pay for calls after they make them. There are no deposits or risks involved. Payments for calls are billed conveniently after termination.
