August 1999
Intermediate to advanced
328 pages
8h 50m
English
Content preview from Voice Over IP
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INTERNET TELEPHONY AND PACKETIZED VOICE
Voice over IP (VoIP) means the transmission of voice traffic in packets.[1] Several terms are used to describe this process. Unless otherwise noted, I will use these terms synonymously: Internet telephony, IP telephony, packet-voice, packetized voice, and voice over IP (VoIP).
[1] For the uninitiated reader, a packet is a small unit of data appended to a routing field. The packet may be variable in length, it can vary in its duration, and it is usually a few bytes in length. This approach is in contrast to telephony-based circuit switched data, which is always of fixed length and fixed in time (duration).