IM-CSI - IM – CAMEL Subscription Information

If an IMS subscriber has access to CAMEL services this will be indicated through IM-CSI (IM – CAMEL Subscription Information). This information is stored in the HSS and is passed on by the S-CSCF to the relevant IM-SSF.


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

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