| 摘要 |
A telephone calling card (prepaid or postpaid) service system with an intelligent network (IN) for automated call processing novelly associates a Virtual Destination Number (VDN) with each calling card account to significantly broaden service options to calling card account subscribers. As a result, a calling card customer can combine calling card service with voice mail service and call forwarding service, which was heretofore not possible. More particularly, the additional services include: the ability of a calling card customer to check a voice mailbox associated with the calling card VDN; the ability of a calling card customer to create and change voice mail greeting options; the ability of a calling card customer to establishing a call forwarding number; and the ability of third parties dialing the VDN to either be connected to a call forwarding number if established, or access the calling card account subscriber's voice mailbox.
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