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.

SS-CSI - Supplementary Service Invocation Notification – CAMEL Subscription Information

SS-CSI is used to notify the CSE about the invocation of certain Supplementary Services. It includes: notification criteria – this indicates the supplementary services for which notifications will be sent. gsmSCF address.


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

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