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Screen Reference
Multifrequency-Signaling-Related Parameters
1098
Administrator’s Guide for Avaya Communication Manager
November 2003
Group B signals
Group B signals enhance group A signals for backward signaling from the destination end by providing
the status of the called party. In addition, if the originating media server or switch uses group II signals,
the destination end answers with group B signals. Group B signals are as follows:
busy
This signal is sent to indicate that the called party is busy. On DID calls, the signal is sent to the CO if
there is no coverage point to terminate the call. If Communication Manager receives this signal on DOD
calls, it plays busy tone to the calling party and drops the trunk.
congestion
This signal is sent to indicate that the system is congested and the call cannot be terminated successfully.
On DID calls, the signal is sent to the CO to indicate that a resource is not available. On DOD calls, if
Communication Manager receives this signal, reorder tone is played to the calling party and the trunk is
dropped.
free
This signal indicates that the called party is idle. On DID calls, the signal is sent to the CO to indicate that
the called party is idle and the call is terminated successfully. If Communication Manager receives this
signal on DOD calls, it connects the trunk to the calling party.
intercept
This signal indicates that the called party number is not in service or is not correct. On DID calls, if
intercept treatment is set to provide a tone, tone is sent to the CO to indicate that the called number is not
valid. If Communication Manager receives the signal on DOD calls, it plays intercept tone to the calling
party and drops the trunk.
mct
This signal identifies the call as one that needs to be traced by the CO. Avaya Communication Manager
then generates an MFC Call Trace Backward Signal (administered on the
Multifrequency-Signaling-Related System-Parameters screen) during call setup instead of the “free”
signal. If the terminating station’s COR has this feature set to y, the CO collects trace information before
releasing the calling party.
NOTE:
If the station’s COR has
MF Incoming Call Trace
set to y and the “mct” signal is not
defined, then the “free” signal is sent.
tariff-free
This signal is sent when the trunk group provides an “800” service. Avaya Communication Manager
generates an MFC tariff-free backward signal (administered on the System-Parameters
Multifrequency-Signaling screen) during call setup instead of the “free” signal, facilitating CO billing.
NOTE:
If the trunk is administered as a tariff-free trunk and the “tariff-free” signal is not defined,
then the “free” signal is sent.
Содержание Communication Manager
Страница 320: ...Setting Up Telecommuting Training Users 320 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 416: ...Managing Group Communications Observing Calls 416 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 502: ...Administering Media Servers SNMP Agents 502 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 602: ...Phone Reference Internet Protocol IP Softphones 602 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 1338: ...Screen Reference Vector Directory Number 1338 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 1832: ...Glossary and Abbreviations Z 1832 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 1854: ...Index X 1854 Administrator s Guide for Avaya Communication Manager November 2003...