CSRN - CS domain Routing Number

Used in order to support IMS Centralized Services, the CSRN will be used during a mobile terminated call set up procedure in order to route the call from the IMS core to the MSC-S responsible for the Called Party (within the CS domain).

NetX

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

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