Spread spectrum and single channel wireless or Internet Protocol (IP) based audio-visual emergency communication system, comprised of radio transceivers, computers with graphical user interface displays, antennas, speakers, visual displays, Light Emitting Diode (LED) programmable message boards, radio transceivers, and emergency call-box units

'antenna':28 'audio':13 'audio-visu':12 'base':11 'board':38 'box':45 'call':44 'call-box':43 'channel':5 'communic':16 'compris':18 'comput':22 'diod':34 'display':27,31 'emerg':15,42 'emit':33 'graphic':24 'interfac':26 'internet':8 'ip':10 'led':35 'light':32 'messag':37 'programm':36 'protocol':9 'radio':20,39 'singl':4 'speaker':29 'spectrum':2 'spread':1 'system':17 'transceiv':21,40 'unit':46 'user':25 'visual':14,30 'wireless':6

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