Gsma Fs.38 ((install)) -

As the telecommunications industry transitions from legacy signaling protocols (like SS7) toward IP-based systems, SIP has become the backbone for voice and multimedia services, including and 5G Voice . FS.38 addresses the unique vulnerabilities introduced by this shift, offering a comprehensive guide to identifying and mitigating SIP-based threats. Key Focus Areas

Offers recommendations for interconnect signaling security, which have been updated to align with the SIP guidelines in FS.38. gsma fs.38

It describes specific technical controls to mitigate identified risks, such as packet filtering and protocol validation. gsma fs.38

By adhering to FS.38, operators can better defend against emerging "all-IP" threats, ensuring that as networks become more open and virtualized, they remain resilient against both traditional and sophisticated cyberattacks. gsma fs.38

FS.38 is part of a broader library of security resources that work in tandem to secure modern networks:

38, or should we look at how it maps to the ? FS.31 GSMA Baseline Security Controls Version 7.0