METHOD FOR COLLECTING CHARGING INFORMATION IN PTT SERVICE AND SYSTEM THEREFOR, ESPECIALLY CONCERNED WITH ENABLING SELECTIVE CHARGING ACCORDING TO VARIOUS CONDITIONS SUCH AS PACKET CHARGING AND TIME CHARGING AS WELL AS PACKET CHARGING UNDER PPT SERVICE ENVIRONMENT

摘要

PURPOSE: A method for collecting charging information in a PTT(Push-To-Talk) service is provided to generate a PTT session or user-based integrated CDR(Call Detail Recording) data by using generated CDR data, and to transmit the PTT session or the integrated CDR data to an charging system, thereby enabling a packet charging function under PTT service environment. CONSTITUTION: An aggregator receives ACR(Accounting Request) information(310). The aggregator decides whether the received ACR information is accounting request start information(315). If so, the aggregator generates a new accounting record session(320). If the ACR information is not the accounting request start information, the aggregator decides whether the information is ACR interim information(325). If not, the aggregator decides whether the information is ACR stop information(335). If so, the aggregator generates CDR data(340). If the information is not the ACR stop information, the aggregator generates new CDR data(345).