telecommunications apparatus, consisting of a local-area paging system, which transmits and receives alpha numeric messages to two-way pagers, via a central base station in an enterprise or campus, using low-power, radio frequency transmission (RF) in the 49 and 900 MHZ range

'49':43 '900':45 'alpha':15 'apparatus':2 'area':8 'base':26 'campus':32 'central':25 'consist':3 'enterpris':30 'frequenc':38 'local':7 'local-area':6 'low':35 'low-pow':34 'messag':17 'mhz':46 'numer':16 'page':9 'pager':22 'power':36 'radio':37 'rang':47 'receiv':14 'rf':40 'station':27 'system':10 'telecommun':1 'transmiss':39 'transmit':12 'two':20 'two-way':19 'use':33 'via':23 'way':21

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