Chapter 20

The Presence Service in the IMS

Gonzalo Camarillo M.Sc., Ph.D., 

Gonzalo Camarillo M.Sc., Ph.D.

member manager speaker visitor researcher

Ericsson, Finland

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Miguel A. García-Martín B. Eng., 

Miguel A. García-Martín B. Eng.

Senior Standardization Specialist Principal Research Engineer speaker

Ericsson, Spain

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First published: 21 August 2008
https://doi.org/10.1002/9780470695135.ch20

Summary

This chapter contains sections titled:

  • The Foundation of Services

  • Presence Architecture in the IMS

  • Presence Publication

  • Watcher Subscription

  • Watcher Information and Authorization of Watchers

  • Presence Optimizations

  • OMA Extensions to PIDF

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