Delma MSS manufactures communications monitoring and tracking solutions using GSM cell mapping and GPS devices. Their tracking approach uses different location methods depending on the circumstances, including GSM cell vectoring and a global cell database. They track assets, personnel, and devices anywhere in the world, recording call details and linking them to locations. Geo-fencing capabilities allow alerts for devices entering or leaving defined areas. Improving GSM tracking uses cell vectoring for positional events and optionally downloading voice calls and reading SMS texts. Extensive GSM cell mapping surveys create accurate cell coverage maps for location tracking.