IP Telephony: Deploying VoIP Protocols and IMS Infrastructure, 2nd Edition

Abbreviations

Glossary

Preface

1 Voice over multimedia

1.1Transporting voice, fax and video over a packet network

1.2Encoding media streams

2 H.323: Packet-based Multimedia Communications Systems

2.1 Introduction

2.2 H.323 step by step

2.3 Optimizing and enhancing H.323

2.4 Conferencing with H.323

2.5 Directories and numbering

2.6 H.323 security

2.7 Supplementary services

2.8Future work on H.323

3 Session Initiation Protocol

3.1. The origin and purpose of SIP

3.2. From RFC 2543 To RFC 3261

3.3. Overview of a simple SIP call

3.4. Call handling services with SIP

3.5. SIP security

3.6. Instant messaging (IM) and presence

4 The 3GPP IP Multimedia Subsystem (IMS) architecture

4.1. Introduction

4.2. Overview of the IMS architecture

4.3. The IMS CSCFs

4.4. The full picture : 3GPP release 8, TISPAN

5 The Media Gateway to Media Controller Protocol (MGCP)

5.1Introduction:why MGCP?

5.2 MGCP 1.0

5.3 Sample MGCP call flows

5.4 The future of MGCP

6 Advanced Topics: Call Redirection

6.1CallredirectioninVoIPnetworks

7 Advanced Topics: NAT Traversal

7.1 Introduction to Network AddressTranslation343

7.2 Workarounds for VoIP when the network cannot be controlled

7.3 Recommended network design for service providers

7.4 Conclusion

Index