KR20140113843A
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Shopping mall operating system using financial service to repay after predetermined period and method thereof
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KR20040079589A
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VoIP gateway having a variable prefix function and control method using the same
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KR20040076181A
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Gatekeeper having function of temporary ID registration and communication transit tandem
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KR20040068450A
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Internet access point having repeater function of cellular phone
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KR20040066683A
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Broadband internet modem having repeater function of credit card settlement terminal
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KR20040060639A
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Apparatus for controlling temporary ID registration and communication transit tandem
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KR20040054151A
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Apparatus for providing internet roaming service
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KR20040045246A
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Internet phone having repeater function of cellular phone
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KR20040041229A
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Apparatus for remote controlling home system using internet phone
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KR20040032457A
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Gatekeeper having a variable prefix function and method for controlling the gatekeeper
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KR20040023454A
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Cordless handset of Internet phone having a temporary ID registration function
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KR20040017995A
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Internet phone having a temporary ID registration function
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KR20040017199A
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Apparatus for calling VoIP phone having a settlement terminal function using wireless interface
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KR20040004949A
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Internet phone having a variable prefix function and method for controlling the internet phone
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KR20030083028A
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Multiple call forwarding apparatus and method
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KR20030064576A
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Apparatus for calling VoIP phone with network interface of credit card settlement terminal
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KR20030062020A
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Apparatus and method for providing calling service using forwarding function
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KR20030057247A
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System and method for providing payment service of commercial transaction using a traffic card
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KR20030049034A
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System and method for providing remote keyphone service
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KR20030043533A
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System and method for providing the phone service by payment of receiving end according to user setting condition
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