Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.

Internet telephony (also called IP telephony) is about converting real-time voice conversations for delivery across packet-switched networks such as the Internet. Telephony also covers telephone-related services such as voice mail, and the integration of telephones and computers. Refer to the following topics for more information about Internet telephony:

• CTI (Computer-Telephony Integration)    Covers the integration of telephones and computers into the same box and over the same networks.


• Multimedia    Discusses how voice, video, and other multimedia are carried over data networks.


• Softswitch  Describes devices that support Internet telephony and convergence with the PSTN.


• Telecommunications and the Telephone System    General overview of the PSTN (public-switched telephone network).


• Videoconferencing    Covers videoconferencing over intranets and the Internet.


• Voice/Data Networks    Describes how data networks can carry voice.


• Voice over IP (VoIP)    Discusses products, standards, and techniques for carrying voice calls over IP networks and the Internet.

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