Flanagan W.A. VoIP and Unified Communications

John Wiley & Sons, 2012. — 305 p.Сomplete description of VOIP and UC from history to the future Internet Telephony and the Future Voice Network.IP Technology Disrupts Voice Telephony.
Traditional Telephones Still Set Expectations.
Data and Signaling Preceded Voice.
Packet Transmission and Switching.
VoIP Signaling and Call Processing.
VoIP and Unified Communications Define the Future.
Interconnections to Global Services.
Network Management for VoIP and UC.
Management Systems.