GSMA IR.92 IMS Profile for Voice and SMS

IR.92 in context

Roaming and interconnect are where two operators, often with an IPX or GRX carrier in between, exchange signaling and user-plane traffic. Trust boundaries here are the primary attack surface for location tracking, SMS interception and fraud, which is why GSMA now mandates SEPP with PRINS on 5G interconnect.

Telecom security is written into standards from 3GPP, GSMA, ETSI, IETF and ITU-T. Understanding which body owns which specification, and how the specs interlock (for example 3GPP TS 33.501 with GSMA FS.34 for 5G SBA security), is essential for both design and audit work.

To place IR.92 in the wider telecom-security picture, review GSMA Permanent Reference Documents (IR Series), PRD, IR.94, FS.07, FS.19 and MTSI.

Related terms

• GSMA Permanent Reference Documents (IR Series)
• PRD
• IR.94
• FS.07
• FS.19
• MTSI
• FS.11
• Interconnect Security Model

Equipment

IMS core (CSCF, TAS, MRF, MGCF, BGCF)

• BGCF
• CSCF
• E-CSCF
• I-CSCF
• IMS
• IMS-AKA
• IR.94
• MGCF
• MTSI
• P-CSCF
• All 14 terms

Articles in the P1 mobile network security guide

Related topic hubs

• Roaming Security IPX/GRX interconnect risk, home-routed vs local-breakout, SEPP.
• VoLTE Security IMS/VoLTE signaling risk: SIP, IMS-AKA, media plane attacks.
• IMS Security Training Training on IMS, VoLTE/VoNR, SIP and RCS security.
• Diameter Security 4G/LTE Diameter threats across IPX/roaming and DEA defenses.

More from the TelcoSec Glossary

Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.