Fs.38: Gsma

For decades, telecommunications relied on closed, proprietary signaling protocols. The transition to IP-based multimedia systems (IMS) democratized communication but exposed core carrier networks to traditional IT vulnerabilities.

: Testing must include SIP endpoints, SBCs (which act as "SIP firewalls"), and even non-SIP nodes like provisioning servers. gsma fs.38

Flooding SIP servers with requests to crash services or degrade call quality. Flooding SIP servers with requests to crash services

: Encrypting communication and validating traffic. Why SIP Security Needs a Paradigm Shift Focuses

This technical framework reshapes how Communication Service Providers (CSPs) and Mobile Network Operators (MNOs) secure their core signaling layers against fraud, denial-of-service (DoS) attacks, and privacy breaches. Why SIP Security Needs a Paradigm Shift

Focuses on protecting network infrastructure, such as Session Border Controllers (SBCs) and core network nodes, from unauthorized access and denial-of-service (DoS) attacks.

: The guidelines help operators address common telecom fraud types, including: Wangiri : One-ring-and-cut scams.