第1章 SIP協(xié)議總體概述............................................................................................................1
1.1 SIP協(xié)議定義..........................................................................................................................1
1.2 SIP協(xié)議支持多媒體通信的五個方面......................................................................................1
1.3 SIP協(xié)議優(yōu)點..........................................................................................................................2
第2章 SIP協(xié)議主要概念模型....................................................................................................3
2.1 實體模型概述........................................................................................................................3
2.2 相關概念...............................................................................................................................4
第3章 SIP協(xié)議主要消息............................................................................................................6
3.1 SIP消息分類..........................................................................................................................6
3.2 SIP消息結構..........................................................................................................................6
3.3 消息格式...............................................................................................................................6
3.3.1 請求消息格式..............................................................................................................6
3.3.2 響應消息格式..............................................................................................................8
第4章 SIP協(xié)議主要響應碼......................................................................................................11
4.1 響應碼分類..........................................................................................................................11
4.2 1xx類消息............................................................................................................................11
4.3 2xx類消息............................................................................................................................12
4.4 3xx類消息............................................................................................................................12
4.5 4xx類消息............................................................................................................................12
4.6 5xx類消息............................................................................................................................14
4.7 6xx類消息............................................................................................................................15
第5章 SIP協(xié)議主要流程..........................................................................................................16
5.1 呼叫模型概述......................................................................................................................16
5.2 基本呼叫建立流程...............................................................................................................17
5.3 基本呼叫拆除流程...............................................................................................................18
5.4 經過代理的呼叫建立流程....................................................................................................19
5.5 經過代理的呼叫拆除流程....................................................................................................20
第6章 SIP協(xié)議在軟交換SoftX3000的實際應用舉例...............................................................22
6.1 SIP用戶局內互通組網說明..................................................................................................22
6.2 SIP協(xié)議在軟交換SoftX3000流程圖....................................................................................22
6.3 對應主要消息說明...............................................................................................................24
6.3.1 INVITE......................................................................................................................24
6.3.2 100 TRYING.............................................................................................................26
6.3.3 407 Proxy Authentication.........................................................................................27
6.3.4 ACK..........................................................................................................................28
6.3.5 INVITE......................................................................................................................29
6.3.6 100 TRYING.............................................................................................................31
6.3.7 INVITE......................................................................................................................32
6.3.8 180 RINGING...........................................................................................................34
6.3.9 200 OK.....................................................................................................................35
6.3.10 ACK........................................................................................................................36
6.3.11 OPTION..................................................................................................................37
6.3.12 BYE........................................................................................................................38