MT-SMS-CSI - Mobile Terminated-SMS-CSI

CAMEL Phase 3 introduced the ability for CAMEL interaction with MO (Mobile Originated) SMS. In Phase 4 this has been extended to cover MT (Mobile Terminated) SMS. The MO-SMS-CSI (Mobile Originated-SMS-CSI) and/or MT-SMS-CSI (Mobile Terminated-SMS-CSI) are passed down to the VLR and SGSN from the HLR. This is part of the Update Location Procedure.


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

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