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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

MESSAGES AND MESSAGE PARAMETERS

Each message verb is coded a four character ASCII field, as shown in Table 9-3.

Table 9-3. The MGCP verbs
VerbCode
CreateConnectionCRCX
ModifyConnectionMDCX
DeleteConnectionDLCX
NotificationRequestRQNT
NotifyNTFY
AuditEndpointAUEP
AuditConnectionAUCX
RestartInProgressRSIP

The command and response messages contain the parameters explained earlier. The command messages and parameters are shown in Table 9-4, and the response messages and parameters are shown in Table 9-5. The notations in the tables have these meanings: M = mandatory; O = optional; F = forbidden.

Table 9-4. Commands and parameters
Parameter Name12345678
CallIdMMOFFFFF
ConnectionIdFMOFFFMF
RequestIdentifierOOOMMFFF
LocalConnectionOptionsOOFFFFFF
ConnectionModeM
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Publisher Resources

ISBN: 0130224634Purchase book