PSI - Provide Subscriber Information

This message is used as part of the CAMEL ATI (Any Time Interrogation) process. It is sent from the HLR to the serving MSC in order to retrieve subscriber state and location information.

NetX

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

Explore NetX today with a
free trial.
More Info about NetX