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1. ITU-T standards
The International Telecommunication Union (ITU), successor organization of the CCITT (International Telephony and Telegraphy Consultative Committee), has proposed a set of recommendations applicable to Internet telephony through its ITU-T standardization sector. These documents are referenced in the H series, which deals with audiovisual and multimedia systems, and more specifically with infrastructure and terminal equipment aspects in the context of audiovisual services.
1.1 Recommendation H.323
The H.323 Recommendation
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ITU-T standards
Internet approach
References
Recommendations
ITU-T (International Telecommunications Union)
- Call Signalling Protocols and Media Stream Packetization for Packet-based Multimedia Communications systems. - H.225.0 - 2003
- Security and Encryption for H series (H.323 and other H.245 based) Multimedia Terminals. - H.235 - 2003
- Control Protocol for Multimedia Communication. - H.245 - 2005
- Interworking of H. Series multimedia terminals with H....
Documentation source
H.323 architecture
The primary source of information is the ITU-T (International Telecommunication Union). ITU-T recommendations can be obtained via the World Wide Web by consulting the http://www.itu.int/home/index.html server.
IETF architecture
Information on IETF developments...
Internet telephony hardware and software
A large number of telecommunications and IT players have invested in the Internet telephony sector. You'll find offers from VocalTech, Cisco, iFace, Nokia, 3Com, Alcatel, Ascend, Ericsson, Lucent, Motorola, Netspeak, Siemens and more.
The Ultimate Scientific and Technical Reference
