Wireless telecommunications networking system for messaging, voice and data communications, and tracking of personnel, equipment, and vehicles, which system is for subterranean use and is comprised of nodes, beacons, handsets, battery backup power source, dispatch station, and related communications software and hardware

'backup':32 'batteri':31 'beacon':29 'communic':10,39 'compris':26 'data':9 'dispatch':35 'equip':15 'handset':30 'hardwar':42 'messag':6 'network':3 'node':28 'personnel':14 'power':33 'relat':38 'softwar':40 'sourc':34 'station':36 'subterranean':22 'system':4,19 'telecommun':2 'track':12 'use':23 'vehicl':17 'voic':7 'wireless':1

SENTINEL

Owner

Goods & Services