Category 2 Voice Services
SIP, Inbound/Outbound, Local, Direct Inward Dialing (DID)
Category 3 Conferencing
Audio Conferencing, Web Conferencing, Video Conferencing
Category 7 Managed Srvcs
Ongoing Support, MassVoice, Emergency Notification, PBX, VOIP
Category 8 Contact Center
Call Center, ACD, IVR, advanced routing, and other features
Category 9 Equipment
Systems and Equipment directly related to the Network & Communications