Atoll supports planning of narrowband digital networks such as TETRA and DMR used in public safety and industrial sectors:

• Narrowband Design: Supports typical TETRA bands (e.g., 380–430 MHz) with slot-based capacity and redundancy.
• Critical Communications: Includes features like coverage overlap, base station redundancy, and coverage resiliency.
• Propagation Accuracy: Uses specialised ray-tracing or empirical models suitable for urban, suburban, and tunnel environments.
• QoS Metrics: Focus on reliability, latency, and indoor penetration to ensure mission-critical communication quality.
• Multi-Layer Integration: TETRA networks can be modelled in parallel with LTE or 5G for hybrid systems.