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Landslide: SGW Nodal - Why unauthenticated IMSI flag is always set to false when Emergency Call is activated?

Environment/Versions
  • Landslide
  • SGW Nodal
    • Emergency Call
Answer

By default UIMSI flag is always set to false, Check below the correct configuration according to different Emergency settings:

  1. Emergency PDN Index : IMSI IE & MEI IE are included with UIMSI flag set to false.
  2. Emergency PDN Index & Emergency Attach with IMEI: Only MEI IE is included with UIMSI flag set to false.
  3. Emergency PDN Index & Emergency Attach Without Authentication: IMSI IE & MEI IE are included with UIMSI flag set to true.

Product : Landslide,LTE,Landslide,S11