中国电信cdma2000核心网络接口协议技术规范sipi协议规范(v10)

2024年5月12日发(作者：佛思云)

中国电信cdma2000核心网络接口协议技术规范-SIP-I协议规范(V1.0)

保密等级：公开发放

中国电信cdma2000核心网络接口协议技

术规范―SIP-I协议规范

Technical Specification of Interface&Protocol in cdma2000 Core Network of

China Telecom－SIP-I

（V1.0）

2008-07-14发布 2008-07-14实施

中国电信集团公司发布

中国电信cdma2000核心网络接口协议技术规范―SIP-I协议规范

前

言 ........................................................................................................................................... 4 1 范

围 ............................................................................................................................................ 1 2 引

用标准 .................................................................................................................................. 1 3 术

语说明 .................................................................................................................................. 2 4 ZZ

接口涉及的网元及协议说明 ...................................................................................... 3 5 通用要

求 .................................................................................................................................. 3 6 MSCE

对SIP/SDP协议能力集的适配要求 ................................................................ 4 7 音资源适配要

求 .................................................................................................................... 4

7.1

7.2

7.3

7.4 总则要求 .............................................................................................................................. 4

SIP消息对音资源行为的适配..................................................................................... 5 提供

EALRY MEDIA实体的行为要求 ............................................................................ 6 接收

EARLY MEDIA实体的行为要求 ............................................................................. 6

7.4.1

7.4.2 基本信令适配 ............................................................................................................ 6 特

殊约定说明 ............................................................................................................ 7 8 编码协商说

明 ......................................................................................................................... 7 9 LMSD网络对

SIP协议重叠发码的要求 ...................................................................... 7 10 会话建立后的周期

更新（呼叫心跳） ..................................................................... 7 11 MSCE基本信令行为说

明 .................................................................................................. 8 11.1 主叫侧

MSCE ...................................................................................................................... 8 11.2 被叫侧

网络MSCE ............................................................................................................. 9 12 切换行为

说明 ................................................................................................................... 10 12.1 总体说

明 ............................................................................................................................ 10 12.2 定时器

描述 ....................................................................................................................... 10 12.2.1 目标

局......................................................................................................................... 10 12.2.2 主控

局......................................................................................................................... 10 12.3 切换过程

实体行为说明................................................................................................ 10 12.3.1 主控

局......................................................................................................................... 10 12.3.2 目标

局......................................................................................................................... 11 13 LMSD网络

中的路由心跳功能 ....................................................................................... 11 13.1 概

述 ...................................................................................................................................... 11 13.2

设备状态 ............................................................................................................................ 12 13.2.1

State 1状态 ............................................................................................................. 12 13.2.2 State

2状态 ............................................................................................................. 13 13.3 消息格

式 ............................................................................................................................ 13 14

其他 ...................................................................................................................................... 13 2

中国电信cdma2000核心网络接口协议技术规范―SIP-I协议规范

14.1 二次拨号信息传送 ......................................................................................................... 13

14.2 SDP中PTIME参数约定说明 ....................................................................................... 13 附

录 A：SIP几个主要METHOD及参数要求（规范性附录） .............................. 15

A.1 INVITE消息 ..........................................................................................................................

A.2 ACK ........................................................................................................................................

A.3 BYE ...........................................................................................................................................

A.4 CANCEL ...................................................................................................................................

A.5 OPTIONS ................................................................................................................................

A.6 INFO .........................................................................................................................................

A.7 PRACK ......................................................................................................................................

17 附录B RFC 3261：SESSION INITIATION PROTOCOL（规范性附录） ......... 18 附录C

RFC 3262 ：RELIABILITY OF PROVISIONAL RESPONSES IN THE SESSION INITIATION

PROTOCOL（规范性附录） .................................................... 29 附录D RFC3264：AN

OFFER/ANSWER MODEL WITH THE SESSION DESCRIPTION PROTOCOL (SDP)