Gsma Fs.38 Jun 2026

: Provides guidelines for testing SIP endpoints, Core Network nodes, and non-SIP nodes like provisioning servers to validate vendor security claims. Significance in 5G and Roaming

: Strategies to prevent unauthorized use and toll fraud, which are common in SIP environments. www.gsma.com Why It Matters Now With mobile infrastructure increasingly classified as Critical National Infrastructure (CNI) gsma fs.38

The document identifies and offers countermeasures for various threats, including: : Provides guidelines for testing SIP endpoints, Core

It is typically read alongside other GSMA security documents, such as FS.19 (Diameter Interconnect Security) and FS.21 (Interconnect Signaling Security Recommendations), to form a holistic defense strategy. Core Network nodes

For more technical depth, members can access the full PRD through the GSMA Cybersecurity Document Library specific penetration testing methodologies