To allow a communication quantity to be charged without issuing a prepaid card.
A charge mediation server 10 settles a charge amount contained in the charge mediation information received from a presenter side terminal 30 on credit, and transmits a present guide mail indicating the charge amount and URL of own server 10 to a receiver side terminal 40. When an acceptance information for receiving the charge amount is received from the receiving side terminal 40 that has accessed the charge mediation server 10, an appropriation requirement for requiring the appropriation of the charge amount to a billed amount is transmitted to a charge management server 20. The charge management server 20 performs appropriation accepting process for appropriating the charge amount to the billed amount which is managed according to a receiver side telephone number.
TAKAHASHI TSUTOMU
TOKOHARA MASARU
TANAKA MIKIKO
Shiro Terasaki
Tomoya Kurokawa
Junji Kashiwaoka
Masakazu Noda
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