August 1999
Intermediate to advanced
328 pages
8h 50m
English
Content preview from Voice Over IP
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ACCOMMODATING TO THE VOICE AND DATA REQUIREMENTS IN A NETWORK
In a previous section in the chapter (see "Barriers to Successful Deployment of IP Telephony"), I made some general comments on the difficulty of supporting speech traffic in the Internet. This section provides more information in the context of how the requirements for voice and video traffic differ.
Tolerance for Errors
Voice transmissions exhibit a high tolerance for errors. If an occasional packet is distorted, the fidelity of the voice reproduction is not severely affected. In contrast, data packets have a low tolerance for errors. One bit corrupted likely changes the meaning of the data. Furthermore, voice packets can afford (on occasion) to be lost or discarded. In the event ...