Systém účtování hovorného pro open-source IP PBX

Abstract

Graduation thesis is considering of telephone charging system for open-source IP PBX. Thesis targets on an Asterisk open source product, which stores CDR call records into databases. The main goal of this thesis is the right way to prepare a well-arranged visualization and to calculate necessary statistics. The visualization is at this thesis worked out by means of web server and PHP scripts. The second part of thesis focuses on additional possibilities of CDR data assimilation. This information is available for detection misusage VoIP services. There is a script implemented to avoid this VoIP misusage, which periodically predicts statistics and compares currently adjusted limits. The administrator is informed in the case of excess limits by return. Implemented script is another possible prevention against VoIP services misusage.