CellusysJ071Cellusys is a global provider of mobile network security, signalling, and roaming solutions, helping operators protect their networks and monetize their infrastructure in an increasingly interconnected, IP-driven world.
Our portfolio spans:
Signalling & Network Security — SS7, Diameter, and GTP firewalls that protect subscribers and infrastructure from fraud, interconnect abuse, and signalling-level attacks.
Messaging & Fraud Protection — SMS Firewall and Anti-Phishing solutions built on a Zero Trust model, defending against smishing, spoofing, spam, and A2P traffic abuse across SMS and messaging channels.
Roaming & Steering of Roaming — end-to-end roaming platforms and Steering of Roaming (SoR) solutions that give operators greater control over partner selection and roaming revenue.
API Enablement — an open, API-first platform architecture designed to support operators' digital and AI transformation strategies, enabling faster integration with partners, aggregators, and internal systems.
5G Core & Network Routing — solutions that extend security and routing intelligence into 5G core architectures, helping operators manage the transition from legacy signalling to next-generation network environments.
Cellusys works with mobile network operators worldwide, combining deep telecom protocol expertise with a flexible, hosted or on-premise delivery model — with no burden on customer operations teams.
We're excited to connect with operators and partners across Latin America at FutureCom São Paulo to discuss how Cellusys can support network security, roaming, and 5G transformation initiatives in the region.
