ICS 03.220.50 CCS V 54 MH 中 华 人 民 共 和 国 民用航空 行 业 标 准 MH/T 4060.3—2025 民用航空 VoIP语音通信技术规范 第3部分：有线通信互操作性协议要求 Technical specification of VoIP voice communication for civil aviation — Part 3：Interoperability protocol requirements for ground/ground communication 2025-12-23 发布 2026-01-01 实施 中国民用航空局 发布 MH/T 4060.3—2025 I 目次 前言 ................................ ................................ ............................... III 引言 ................................ ................................ ................................ IV 1 范围 ................................ ................................ .............................. 1 2 规范性引用文件 ................................ ................................ .................... 1 3 术语和定义 ................................ ................................ ........................ 2 4 缩略语 ................................ ................................ ............................ 3 5 总体要求 ................................ ................................ .......................... 3 6 SIP消息 ................................ ................................ ........................... 4 6.1 消息分类 ................................ ................................ ...................... 4 6.2 消息结构 ................................ ................................ ...................... 6 7 RTP数据 ................................ ................................ ........................... 8 7.1 一般要求 ................................ ................................ ...................... 8 7.2 音频要求 ................................ ................................ ...................... 8 7.3 数据包分类 ................................ ................................ .................... 8 7.4 数据包结构 ................................ ................................ .................... 8 8 有线通信功能协议要求 ................................ ................................ .............. 9 8.1 自动重拨 ................................ ................................ ...................... 9 8.2 呼叫保持 ................................ ................................ ...................... 9 8.3 呼叫转移 ................................ ................................ ...................... 9 8.4 呼叫转接 ................................ ................................ ...................... 9 8.5 会议 ................................ ................................ .......................... 9 8.6 席位监听 ................................ ................................ ..................... 10 8.7 呼叫强插 ................................ ................................ ..................... 10 8.8 呼叫代答 ................................ ................................ ..................... 10 8.9 群呼叫 ................................ ................................ ....................... 10 8.10 IA呼叫 ................................ ................................ ..................... 10 8.11 模拟/数字有线网络接入呼叫 ................................ ................................ ... 11 附录A（规范性） 有线通信互操作性基本要求 ................................ ........................... 12 A.1 有线通信 SIP消息相关语法 ................................ ................................ ..... 12 A.2 有线通信 SIP请求消息 ................................ ................................ ......... 14 A.3 有线通信 SIP响应消息 ................................ ................................ ......... 15 A.4 SDP数据结构 ................................ ................................ ................. 17 A.5 RTP头部结构 ................................ ................................ ................. 18 A.6 用户代理功能要求 ................................ ................................ ............. 18 A.7 实体标识列表方法要求 ................................ ................................ ......... 19 A.8 环路检测发现 ................................ .........................