computer hardware, computer software and peripherals sold as a unit for call processing; call networking, call mangement; phone, facsimile, voice and video conferencing; advanced calling; call validation; voice and message delivery; and fraud control

'advanc':24 'call':12,14,16,25,26 'comput':1,3 'conferenc':23 'control':34 'deliveri':31 'facsimil':19 'fraud':33 'hardwar':2 'mangement':17 'messag':30 'network':15 'peripher':6 'phone':18 'process':13 'softwar':4 'sold':7 'unit':10 'valid':27 'video':22 'voic':20,28

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