The software for 2Wire's Home Portal by Verizon displays what systems are active when more then one shares the hub. The host pc with a NIK card is the one that needs a direct connection to the dedecated phone line.
Just about all of the services toss one or another antivirus and firewall program on the disk as well as the monitoring, configuration wizard, and drivers needed. The rest are connected by a usb to phone line type adapter using only two wires giving it that name.