Covid 19 Update: Given the current global situation, we have paused the delivery of our LiveOnsite courses, but our LiveOnline and OnlineAnytime Packages remain unaffected. Browse over 50 online courses in our course catalogue, or get in touch to register your interest in future LiveOnsite courses when we are able to safely resume in person training.

SIMPLE - SIP for Instant Messaging and Presence Leveraging

SIMPLE is an IETF (Internet Engineering Task Force) working group which, as its title suggests, is responsible for the development of SIP (Session Initiation Protocol) based IM (Instant Messaging) and Presence services.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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