Improving data warehouse and business information quality: methods for reducing costs and increasing profits
IP telephony: packet-based multimedia communications systems
IP telephony: packet-based multimedia communications systems
International Standards for VoIP
BT Technology Journal
VoIP Applied — Lab Bench to Multimedia Service
BT Technology Journal
International Standards for VoIP
BT Technology Journal
SIP and Conversational Internet Applications
BT Technology Journal
SIP and H.323 — Interworking VoIP Networks
BT Technology Journal
IP Telephony Solutions for the Customer Premises
BT Technology Journal
BT Technology Journal
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The advent of the Internet has created a revolution in the telecommunications and computing industries. The rapid growth in the use of personal computers plus their ubiquity, combined with easy access to the Internet in both the office and at home, has led to the development of standard protocols that can support voice and video communication over the same data networks used for the Internet. This paper describes one such standard developed by the International Telecommunications Union — H.323. The paper describes the origin of the standard and the processes and drivers from which it has been developed. It then overviews the standard and the capabilities in each version and describes the future direction.