中国电信在线计费系统(OCS)OCP接口规范V1.1-China Telecom Online Billing System (OCS) OCP Interface Specification V1.1

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 chang