What is Voice over Internet Protocol (VoIP)? Is a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks.

Cisco UC520 VoIP Telephone System Voice View Express User Guide

Cisco UC520 VoIP Telephone System and unified communication system Voice View Express feature and user guide. VVE allows the users to access their voicemail using their Cisco IP Phone display and softkeys. www.CableSupply.com has a large selections o...

« Cisco Systems videos