Morgan Kaufmann. Internet Multimedia Communications Using SIP Including Java Practice

Morgan Kaufmann Internet Multimedia Communications Using SIP Including Java Practice Jan 2008 eBook-

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PART I FUNDAMENTALS 1
CHAPTER 1 Introduction ........................................3
1.1 IP Multimedia Communication Services .....................
1.2 The Role of Signaling and Media
1.3 Type of Services Enabled by SIP ..............................................................10
1.4 Examples of SIP Applications ...................................................................13
1.5 The Internet Engineering Task Force (IETF) ............................................16
1.6 Summary ..................................................................................................20
CHAPTER 2 A Bit of History ..................................................................................21
2.1 The Third Revolution in the Internet .......................................................21
2.2 The Next Revolution in the Telecommunication Industry ......................23
2.3 A Brief History of Internet Multimedia ....................................................26
2.4 Summary ..................................................................................................29
CHAPTER 3 IP Multimedia Fundamentals ......................................................31
3.1 Internet Concepts ....................................................................................31
3.2 TCP/IP Protocol Architecture ..................................................................34
3.3 Architecture for Internet Multimedia Communications ..........................39
3.4 Summary ..................................................................................................42
CHAPTER 4 SIP Overview ......................................................................................43
4.1 What is SIP? ..............................................................................................43
4.2 SIP Addressing ..........................................................................................44
4.3 SIP Functions ...........................................................................................45
4.4 SIP Entities ...............................................................................................50
4.5 Summary ..................................................................................................58
CHAPTER 5 Multimedia-Service Creation Overview ..................................59
5.1 What are SIP Services? .............................................................................59
5.2 SIP Services and SIP Entities ....................................................................60
5.3 Terminal-Based or Network-Based SIP Services .......................................62
5.4 SIP Programming Interfaces .....................................................................64
5.5 Media-Programming APIs .........................................................................69
5.6 APIs Used in This Book ............................................................................70
5.7 Summary ..................................................................................................70
CHAPTER 6 SIP Protocol Operation .................................................................75
6.1 SIP Mode of Operation ...........................................................................75
6.2 SIP Message Format ................................................................................83
6.3 SIP Routing .............................................................................................95
6.4 SIP Detailed Call Flows .........................................................................103
6.5 Summary ...............................................................................................112
CHAPTER 7 SIP Protocol Structure ................................................................113
7.1 Protocol Structure Overview ................................................................113
7.2 SIP Core Sublayer ..................................................................................116
7.3 SIP Transaction Sublayer .......................................................................117
7.4 SIP Transport Sublayer ..........................................................................129
7.5 SIP Syntax and Encoding Function .......................................................132
7.6 SIP Dialogs ............................................................................................132
7.7 Summary ...............................................................................................136
CHAPTER 8 Practice with SIP ..........................................................................137
8.1 What Is JAIN SIP? ..................................................................................137
8.2 JAIN SIP Architecture ............................................................................140
8.3 The SipStack, SipProvider and ListeningPoint ......................................144
8.4 The SipListener .....................................................................................146
8.5 Other Factories: MessageFactory, HeaderFactory,
AddressFactory .....................................................................................148
8.6 Programs and Practice ..........................................................................152
8.7 Summary ...............................................................................................174
CHAPTER 9 Session Description .....................................................................177
9.1 The Purpose of Session Description .....................................................177
9.2 The Session Description Protocol (SDP) ..............................................179
9.3 Example IP Communication Sessions Described with SDP .................184
9.4 The Offer/Answer Model with SDP ......................................................187
9.5 SDP Programming .................................................................................191
9.6 Summary ...............................................................................................199

 

CHAPTER 10 The Media Plane ...........................................................................201
10.1 Overview of the Media Plane ...............................................................201
10.2 Real-time Transport Protocol (RTP) ......................................................203
10.3 Messaging Service Relay Protocol (MSRP) ............................................209
10.4 Summary ...............................................................................................224
CHAPTER 11 Media Plane Programming .......................................................225
11.1 Overview ..............................................................................................225
11.2 JMF Entities ..........................................................................................228
11.3 JMF Operation ......................................................................................237
11.4 Putting It All Together: The VoiceTool ..................................................245
11.5 Putting It All Together: The VideoTool ..................................................248
11.6 Putting It All Together: The TonesTool ..................................................254
11.7 Using the Components. Example 6 ......................................................255
11.8 Summary ...............................................................................................256
CHAPTER 12 The SIP Soft-Phone ......................................................................257
12.1 Scope ....................................................................................................257
12.2 Architecture ..........................................................................................258
12.3 User Interface and Confi guration .........................................................263
12.4 State Model ...........................................................................................267
12.5 Implementation Aspects .......................................................................271
12.6 Summary ...............................................................................................281
CHAPTER 13 Sip Proxies ......................................................................................283
13.1 What Is a SIP Proxy? .............................................................................283
13.2 Transaction Stateful Proxies ..................................................................285
13.3 Stateful Proxy Behavior ........................................................................289
13.4 Transaction Stateless Proxies ................................................................293
13.5 Stateless Proxy Behavior .......................................................................293
13.6 Practice: SIP Server ...............................................................................294
13.7 Summary ...............................................................................................312
CHAPTER 14 Securing Multimedia Communications ...............................313
14.1 Review of Basic Encryption Concepts .................................................314
14.2 Attacks and Threat Models in SIP ..........................................................319
14.3 Security Services for SIP .......................................................................320
14.4 Security Mechanisms for SIP .................................................................320
14.5 Best Practices on SIP Security...............................................................327
14.6 Securing the Media Plane .....................................................................330
14.7 Summary ...............................................................................................334
PART III ADVANCED TOPICS 335
CHAPTER 15 Extending SIP ..................................................................................337
15.1 Defi ning New Extensions .....................................................................337
15.2 SIP Architectural Principles ..................................................................338
15.3 Extensibility and Compatibility ............................................................338
15.4 Reliability of Provisional Responses .....................................................344
15.5 UPDATE ................................................................................................347
15.6 SIP-specifi c Event Notifi cation ..............................................................348
15.7 History-Info ...........................................................................................355
15.8 Globally Routable User Agent URIs (GRUUs) .......................................356
15.9 Summary ...............................................................................................360
CHAPTER 16 Presence and Instant Messaging .......................................361
16.1 Overview of Presence and Instant Messaging ...................................361
16.2 The Presence Model ..........................................................................363
16.3 Presence with SIP ..............................................................................365
16.4 Presence

 

Information ........................................................................368
16.5 Address Resolution ............................................................................370
16.6 Resource Lists ....................................................................................370
16.7 XCAP ..................................................................................................372
16.8 Instant Messaging ..............................................................................372
16.9 IM Servers ..........................................................................................374
16.10 Practice: Softphone3 ..........................................................................375
16.11 Summary ............................................................................................379
CHAPTER 17 Call Control...................................................................................381
17.1 What Is Call Control? .........................................................................381
17.2 Peer-to-Peer Call Control....................................................................383
17.3 Third Party Call Control (3PCC) ........................................................389
17.4 Remote Call Control ..........................................................................390
17.5 Summary ............................................................................................394
CHAPTER 18 Interworking with PSTN/PLMN .............................................395
18.1 Motivation ..........................................................................................395
18.2 Architecture ........................................................................................396
18.3 Telephone Addressing: The TEL URI ..................................................400
18.4 ENUM: The E.164 to URI Dynamic Delegation
Discovery System ..............................................................................401
18.5 Protocol Translation ............................................................................403
18.6 Protocol Encapsulation .......................................................................406
18.7 Translation or Encapsulation? .............................................................407
18.8 Summary .............................................................................................408
CHAPTER 19 Media Servers and Conferencing .......................................409
19.1 Basic Media Services ..........................................................................410
19.2 About KPML and the User Interaction Framework ............................417
19.3 Enhanced Conferencing .....................................................................418
19.4 Framework for Conferencing with SIP...............................................419
19.5 XCON Framework ..............................................................................423
19.6 Media Server Control .........................................................................429
19.7 Other Media Services .........................................................................435
19.8 Summary ............................................................................................436
CHAPTER 20 SIP Identity Aspects .................................................................437
20.1 Identity Management in SIP ...............................................................437
20.2 Basic Identity Management ................................................................439
20.3 Private Header for Network Asserted Identity ...................................441
20.4 Enhanced Identity Management ...........................................................444
20.5 Summary ..............................................................................................445
CHAPTER 21 Quality of Service .........................................................................447
21.1 Quality of Service in IP Networks ........................................................447
21.2 Mechanisms for QoS ............................................................................449
21.3 Policy-based Admission Control ...........................................................453
21.4 SIP Integration with Resource Reservation:
The Preconditions framework ............................................................454
21.5 SIP Integration with Policy Control: Media and
Qos Authorization ...............................................................................460
21.6 Summary ..............................................................................................465
CHAPTER 22 NAT Traversal .................................................................................467
22.1 NAT Overview ......................................................................................467
22.2 Behavior of NAT Devices .....................................................................470
22.3 SIP Traversal through NAT ....................................................................474
22.4 RTP Traversal through NAT ..................................................................479
22.5 Session Border Controllers ...................................................................485
22.6 NAT Traversal Using SBCs .....................................................................488
22.7 Summary ..............................................................................................493
CHAPTER 23 SIP Networks ..................................................................................495
23.1 The Role of the Network ......................................................................495
23.2 Mobility and Routing ............................................................................497
23.3 Authentication, Authorization, and Accounting ...................................497
23.4 Security ................................................................................................498
23.5 Interworking and Border Functions .....................................................498
23.6 Provision of Network-Based Services ...................................................499
23.7 Summary ..............................................................................................500
CHAPTER 24 The IMS ............................................................................................501
24.1 3GPP and IMS .......................................................................................501
24.2 High-Level IMS Requirements ..............................................................504
24.3 Overview of IMS Architecture ..............................................................510
24.4 IMS Concepts .......................................................................................520
24.5 New Requirements on SIP ...................................................................529
24.6 IMS Services .........................................................................................532
24.7 ETSI TISPAN NGN .................................................................................536
24.8 Next Trends in IMS ...............................................................................538
24.9 Summary ..............................................................................................539