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3GPP S13  Application ( 16777252 )

The S13 reference point is between the Mobility Management Entity (MME) and the Equipment Identity Register (EIR). The S13 interface enables the mobile equipment identity check procedure between the MME and the EIR. The S13’ reference point is located between the Serving GPRS Support Node (SGSN) and the EIR, and provides the mobile equipment identity check procedure between those two nodes.
Reference:  3GPP TS29.272   View
MESSAGES

Name

Code

ME-Identity-Check-Request 324
ME-Identity-Check-Answer 324