Roaming Security Assessment

Roaming Security Assessment in context

Signaling protocols carry the control-plane instructions that set up calls, register subscribers, hand over sessions and route SMS. SS7, Diameter, GTP-C and SIP are the four dominant families, and interconnect exposure of any of them is treated by GSMA FS.11 / FS.19 / FS.20 as a top-tier telecom risk.

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.

To place Roaming Security Assessment in the wider telecom-security picture, review Roaming, Roaming Interconnect Security, FS.11, Roaming Security Architecture, Signaling Screening and TCAP Abuse.

Related terms

• Roaming
• Roaming Interconnect Security
• FS.11
• Roaming Security Architecture
• Signaling Screening
• TCAP Abuse
• Behavioral Signaling Detection
• Diameter Interconnect Security

Related topic hubs

• SS7 Firewall GSMA FS.11 category 1/2/3 SS7 message screening at the STP edge.
• Signaling Firewall Unified SS7/Diameter/GTP/SMS signaling firewall framework.
• SS7 Penetration Testing Interconnect pentest methodology for SS7 signaling.
• Diameter Firewall GSMA FS.19 screening at the Diameter Edge Agent on S6a/S9/S13.

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.