We are a Tier-1 Steering or Roaming vendor, focusing on the visibility and control of your network and subscriber experience. Cellusys is the provider of choice for MNOs as well as carrier groups and signalling providers delivering flexible and powerful solutions for 5G, VoLTE, signalling security, anti-fraud, A2P monetisation, roaming, analytics, and IoT.

Our roaming solutions are 5G SA ready and provide the highest quality VoLTE roaming experience to your subscribers while helping you to achieve your usage and revenue targets.

Cellusys systems serve over 880 million subscribers worldwide to make CSPs more secure, intelligent, and profitable.

#1 Steering of Roaming vendor
Flexible, Reliable - Uncomplicated