YD 1297-2003 IP电话媒体网关控制器技术要求.pdf

1`L 中华人民共和国通信行业标准 丫D/T 1297-2003 IP电话媒体网关控制器技术要求 GeneraltechnicalrequirementsforIPtelephony mediagatewaycontroller 2003-12-30发布 2003-12-30实施 中华人 民共和 国信息产业部 发布 YD/T1297-2003 目 次 前 言 m 1 范围 ············。·······。·····························································································…… 1 2 规范性引用文件 ··································································································…·… 1 3 定义 ··················································································································…… 1 4 缩略语 ·············································································································…… t 5 IP电话媒体网关控制器在网络中的位置 ·····································································…… 2 6 引人MGC后的网络互通架构 ···················································································…·…3 6.1与电路交换网的互通 ······················································································…·…3 6.2 与No.7信令网的互通 ······················································································…·…3 6.3与软交换网的互通 ·························································································…·…3 功能要求 ·····························。·。············································································……4 7.1呼叫控制和处理功能 ················································································…·…’”·’‘4 7.2 协议功能 ···················································