Patent ID: 7453996
Filing Date: 2008-11-18
Classification: G06Q,H04M,H04W

Abstract:
1. A method for calculating a telecommunication service charge of a user based on a predetermined length of time for which the user uses the telecommunication service, comprising the steps of: a) calculating reference time of the user based on telecommunication service use time for a predetermined period; b) calculating flat rate application time based on the predetermined additional amount, the flat rate application time being a period during which flat rate is applied after the reference time; c) reading the user's telecommunication service subscription time of this month from a database for storing the user's telecommunication service usage history; and d) imposing a first service charge if the telecommunication service use time of the user is shorter than the reference time, imposing a second service charge if the telecommunication service use time of the user is longer than the reference time and shorter than the flat rate application time, and imposing a third service charge if the telecommunication service use time of the user is longer than the flat rate application time, wherein if the user is an updated subscriber for an ith service period, the additional amount is calculated based on an equation as: