Avaya Communication Manager Administrator's Manual page 1197

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
Coverage/Forwarding screen is y.
•
The
Value-Added Avaya (VALU)
screen is y.
This field pertains only to CCRON and QSIG VALU coverage calls redirected over end-to-end ISDN
facilities. Some cellular phone providers send an ISDN PROGRESS message with the Progress Indicator
field set to 'inband information' when a cellular phone 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' may be received for
reasons other than an unavailable cellular phone. 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 may 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
phones may want to consider setting this field to y.
Administrator's Guide for Avaya Communication Manager
November 2003
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
field on the
System Parameters Call Coverage / Call Forwarding
field on the System Parameters
System-Parameters Customer-Options, Page 6,
Screen Reference
1197