1) The Accellus system is a low-cost, medium-band Direct-Sequence Spread-Spectrum packet radio network designed for reliable data transfer of up to 32 Kb/s under difficult conditions using few base stations. 2) The network can determine the location of radio modems using signal time-of-arrival measurements from three base stations, providing redundancy for robust two-way data transfer. 3) Accellus Communication Networks BV is a Dutch startup that creates purpose-built low-power wide area network solutions for machine-to-machine communication using lite-licensed frequencies, aiming to offer more secure, reliable, energy-efficient and affordable options compared to existing technologies.