美利体育登录入口官网:ITU-T E.436 FRENCH-1998
每百万中用户影响的事件和拥塞故障.系列E:整体网络操作.电话业务.业务操作和人为因素.网络管理和流量工程的业务质量.网络管理.检查国际电话业务的质量
Customer Affecting Incidents and Blocking Defects Per Million - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Quality of Service Network Management and Traffic Engineering - Network Management - Checking the Q