SimilarityRank
telephone_system 0.810 76189
phone_service 0.695 73743
PBX 0.685 70376
phone_line 0.679 43149
telephone_service 0.670 65209
voice_mail 0.654 78669
telephony 0.646 52561
VoIP 0.636 28117
telephone_line 0.633 56007
VOIP 0.620 95665
call_center 0.615 25305
landline 0.606 62346
voicemail 0.601 50957
telephone 0.598 4539
communication_system 0.597 16611
fax_machine 0.595 77782
network_infrastructure 0.585 45580
switchboard 0.582 69180
contact_center 0.581 90959
Internet_service 0.580 23490
modem 0.577 12021
telephone_company 0.574 84691
telecommunication_system 0.570 87387
wireless 0.570 8222
alarm_system 0.569 42615