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Voice Over IP
book

Voice Over IP

by Uyless Black
August 1999
Intermediate to advanced
328 pages
8h 50m
English
Pearson
Content preview from Voice Over IP

THE CONNECTION MODES

Before we examine the messages that are exchanged between the Call Agent and the Gateway, we need one more piece of information. Each connection is defined by the following modes: (a) send only, (b) receive only, (c) send/receive, (d) conference, (e) data, (f) inactive, (g) loopback, (h) continuity test, (i) network loop test, or (j) network continuity test. The mode of the connection determines how voice signals are handled. The MGCP sets forth the following rules for these modes, and I use [ARAN98a], with amplifying comments:

Voice signals received in data packets through connections in receive, conference, or send/receive mode are mixed and sent to the endpoint. Voice signals originating from the endpoint are transmitted ...

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Publisher Resources

ISBN: 0130224634Purchase book