计算费用的电话系统方便实用者使用 - Along with the rapid development of the long river of human history has entered a new era- 21st century digital information age, Internet is an unprecedented impact affects human life. Its emergence and development, is slowly changing people s way of life, the Internet and therefore a more popular topic, it has a strong influence. The system is an Internet billing system, billing system as a bound to two types of users, a member of the system and another user for the system administrator background, in which members of the major functions of the system to manage their own account, modify personal information, view their spending records, view their account balances, and view some dynamic information service providers to provide some of the packages and services, online ordering packages, and view their order of service information. System administrator main feature is a member of the website information management view the balance and remove members, manage and view subscr iption packa