YD 1297-2003 IP电话媒体网关控制器技术要求

Contents Contents iii List of Tables xi List of Figures xv 1 General 1 1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Normative references . . . . . . . . . . . . . . . . . . . . . . .

Contents Contents ii List of Tables x List of Figures xiv 1 Scope 1 2 Normative references 2 3 Terms and definitions 3 4 General principles 7 4.1 Implementation compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2 St