Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate
2003-10-31
2008-11-18
Tieu, Binh K. (Department: 2614)
Telephonic communications
With usage measurement
Call charge metering or monitoring
C379S114030, C379S114090, C379S114180, C379S121020
Reexamination Certificate
active
07453996
ABSTRACT:
Provided is a billing method for telecommunication service based on fixed fee according to user's usage time. The method includes the steps of: estimating reference time according to user's usage time of the previous term; estimating guarantee time; reading user's usage time of this term; and billing telecommunication service fare according to the reference time and the guarantee time.
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patent: 2005/0033691 (2005-02-01), Whewell et al.
patent: 08-317089 (1996-11-01), None
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patent: 2001-333060 (2001-11-01), None
patent: 10-2001-0057374 (2001-07-01), None
patent: WO 01/67578 (2001-09-01), None
International Search Report for International Application No. PCT/KR2003/002325 mailed on Feb. 16, 2004.
KT Corporation
Marshall & Gerstein & Borun LLP
Tieu Binh K.
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