Comores Telecom is a universal operator that provides telecommunication services using 3G, EVDO, ADSL and Wi-Fi standards. A large number of services and types of traffic in the network is severely complicated billing processes, so the operator is required contemporary and flexible system for on-line traffic analisis and billing. The most technically challenging and interesting aspect of the project was the organization of DPI-platform operation simultaneously in all network segments. PROTEI DPI is a traffic management platform with deep packet inspection capabilities allowing to effectively manage utilization of network resources and billing policy for each type of traffic individually, depending on a number of parameters. PROTEI Policy Controller is a n intellectual node regulating policy and charging parameters for mobile Internet subscribers in real time mode. The installation of these platforms has allowed Comores Telecom effectively solve all problems with different types of traffic online charging for completely different parts of the network. PROTEI has created a unique solution exactly suitable to the specific requirements of the operator thanks to the system settings flexibility and easy scaling of PROTEI equipment. Companies are planning to develop their cooperation in roaming and VAS-services directions.