9 Software for telecommunications services, namely, software for the operation and management of telephone communication, PBX, facsimile, voicemail, call processing, call waiting, internet telephony, and voice over internet protocol (VoIP) services; PBX communication systems consisting of computer hardware and software designed to provide telephone, facsimile, voicemail, call processing, call waiting, internet telephony, and voice over internet protocol (VoIP) services