In wireless applications, the C interface is a 3G interface between the MSC and HLR.
Overview
C interface is between the MSC and HLR. It uses MAP over TCAP, SCCP, SIGTRAN XUA, SCTP transport protocol.
Network Diagram
Messages
- SendAuthenticationInfoArg
- SendAuthenticationInfoRes
- UpdateLocationArg
- UpdateLocationRes
- MO_ForwardSM_Arg
- MO_ForwardSM_Res
- InsertSubscriberDataArg
- InsertSubscriberDataRes
Call Flows
Standards
- 3GPP TS 09.02 (MAP v1, MAP v2)
- 3GPP TS 29.002 (MAP v3) - MAP for 3G UMTS & GSM (Release 99 and later)
Related Products and Protocols
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