Chapter 4. Session Control on the Internet

  1. Gonzalo Camarillo M.Sc., Ph.D. member manager speaker visitor researcher1 and
  2. Miguel A. García-Martín B. Eng. Senior Standardization Specialist Principal Research Engineer speaker2

Published Online: 21 AUG 2008

DOI: 10.1002/9780470695135.ch4

The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition

The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition

How to Cite

Camarillo, G. and García-Martín, M. A. (2008) Session Control on the Internet, in The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470695135.ch4

Author Information

  1. 1

    Ericsson, Finland

  2. 2

    Ericsson, Spain

Publication History

  1. Published Online: 21 AUG 2008
  2. Published Print: 10 OCT 2008

ISBN Information

Print ISBN: 9780470516621

Online ISBN: 9780470695135

SEARCH

Keywords:

  • IMS and Session Initiation Protocol (SIP);
  • Session Description Protocol (SDP);
  • commercial SIP phones;
  • forking proxy operation;
  • redirect servers and routing SIP messages;
  • SIP - INVITE–ACK and CANCEL transactions;
  • SIP dialog through “INVITE–200 OK” transaction;
  • caller preferences and user agent capabilities;
  • event notification framework;
  • REFER method and contact resource

Summary

This chapter contains sections titled:

  • SIP Functionality

  • SIP Entities

  • Message Format

  • The Start Line in SIP Responses: the Status Line

  • The Start Line in SIP Requests: the Request Line

  • Header Fields

  • Message Body

  • SIP Transactions

  • Message Flow for Session Establishment

  • SIP Dialogs

  • Extending SIP

  • Caller Preferences and User Agent Capabilities

  • Reliability of Provisional Responses

  • Preconditions

  • Event Notification

  • Signaling Compression

  • Content Indirection

  • The REFER Method

  • Globally Routable User Agent URIs (GRUU)

  • NAT Traversal