9
Telephone switches and routers; data switches, routers and firewalls; voice-over-ip switches, routers and firewalls; voice-over-ip to plain old telephone service interfaces, switches and routers; voice-over-ip to cellular telephone service interfaces, switches and routers; voice-over-ip software, namely, software to convert voice into digital data packets for transmission over internet protocol (IP) networks to allow conventional telephony instruments to communicate over IP networks; computer telephony software, namely, software to allow data devices such as computers to function as telephony instruments and to provide IP based telephony functionality to such devices
37
Installation, maintenance and repair of-- telephone switches and routers; data switches, routers and firewalls; voice-over-ip switches, routers and firewalls; voice-over-ip to plain old telephone service interfaces, switches and routers; voice-over-ip to cellular telephone service interfaces, switches and routers; voice-over-ip software used to operate voice-over-ip hardware; computer telephony software used to operate telephony hardware
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