Abstract: Disclosed is a payment system and method for supporting user verification in VoIP configuration by receiving secret number or VoIP phone number of a user as payment information on Internet and completing the payment by user verification and occupancy verification. The payment system includes a user terminal for inputting secret number or VoIP phone number as payment information, a payment gateway server for receiving the payment information from the user terminal to intermediate user verification and approving payment by occupancy verification, and a central communication company server for receiving the payment information from the payment gateway server to verify the user and receiving a final payment approval to add a payment amount to communication charges of the user terminal and bill the charges. The payment system prevents illegal payment by fraudulent use of the user information.

Abstract: An information providing system using external sound source recognition of a mobile communication terminal includes a sound source recognizing means for receiving a specific sound source in the external environment by playing a sound source file and recognizing sound source information; an intrinsic information detecting means for detecting the intrinsic information inserted when manufacturing the sound source file from the sound source information; an intrinsic information interpreting means for decoding the intrinsic information to interpret the meaning of the intrinsic information; and an intrinsic information managing means for outputting the contents of the intrinsic information on a screen to display the intrinsic information to the user.

Abstract: The present invention relates to wireless payment system and method in a mobile environment in which a sender makes a gift request for an internet item to a receiver using an MMS message and the sender is provided with the item according to payment of the receiver. The wireless payment system according to the present invention includes an item server for receiving a gift request MMS message for a specific item from a sender terminal, sending the gift request MMS message to a receiver terminal, receiving an approval result according to payment of the receiver, and if the approval result is success, providing the item to the sender; and a payment server for receiving connection of a payment request for gift purchase from the receiver terminal which received the MMS message, approving the payment request, and transmitting the approval result to the item server.

Abstract: Disclosed is a payment system and method for supporting user verification in VoIP configuration by receiving secret number or VoIP phone number of a user as payment information on Internet and completing the payment by user verification and occupancy verification. The payment system includes a user terminal for inputting secret number or VoIP phone number as payment information, a payment gateway server for receiving the payment information from the user terminal to intermediate user verification and approving payment by occupancy verification, and a central communication company server for receiving the payment information from the payment gateway server to verify the user and receiving a final payment approval to add a payment amount to communication charges of the user terminal and bill the charges. The payment system prevents illegal payment by fraudulent use of the user information.

Abstract: Disclosed are method and system for approving electronic payment using SMS including URL callback. Using this method, possession of a mobile terminal is very simply checked for approval of the payment using the mobile terminal. That is to say, if a payment approving server transmits SMS including URL callback to the mobile terminal of a purchaser and the purchaser accesses wireless Internet with the URL callback without inputting any certification number, the payment approving server extracts a mobile terminal number from WAP data packet transmitted from the mobile terminal accessed to the wireless Internet and then checks whether the purchaser possesses the mobile terminal. In addition, a purchaser-identifying authentication code requiring security is not transmitted via the electronic shopping mall server, but directly input to the payment approving server through the wireless Internet, thereby ensuring safe electronic payment.