Avaya Communication Manager Administrator's Manual page 1508

Screen Reference
COVERAGE
External Coverage Treatment for Transferred Incoming Trunk Calls
This field governs how an transferred incoming trunk call is handled if the call redirects to
coverage.
Valid entries
y
n
Immediate Redirection on Receipt of PROGRESS Inband Information
This field appears only if one of the following is true:
The Coverage of Calls Redirected Off-Net Enabled field on the System Parameters
●
Coverage/Forwarding screen is y.
The Value-Added Avaya (VALU) field on the
●
Page 6, screen is y.
This field pertains only to CCRON and QSIG VALU coverage calls redirected over end-to-end
ISDN facilities. Some cellular telephone providers send an ISDN PROGRESS message with
the Progress Indicator field set to 'inband information' when a cellular telephone is unavailable
to receive a call. In these circumstances, the message indicates that an announcement is being
played to the originating party and we should move the call immediately to the next available
coverage point.
However, a PROGRESS message with a Progress Indicator of 'inband information' might be
received for reasons other than an unavailable cellular telephone. In this case, you probably do
not want to redirect the call to the next coverage point.
There is no way for Avaya Communication Manager to know the actual intent of such a
PROGRESS message, yet you might choose how the system should handle this message. It is
essentially an educated, but blind, choice and you should be aware that there will be instances
when this choice leads to inappropriate call handling.
Avaya Communication Manager queries this field on receipt of a qualifying PROGRESS
message and acts according to your instruction on how to treat it.
As a guide, users in European countries following the ETSI standard and redirecting to GSM
cellular telephones might want to consider setting this field to y.
1508 Administrator Guide for Avaya Communication Manager
Usage
Enter y to allow external coverage treatment for incoming trunk calls that
redirect to coverage.
Enter n to allow internal coverage treatment for incoming trunk calls that
redirect to coverage
System-Parameters Customer-Options,