Avaya Communication Manager Administrator's Manual page 1509

In the United States, PROGRESS messages with the Progress Indicator field set to 'inband
information' are sent for a variety of reasons not associated with unavailable cellular telephones
and you should set this field to n.
Valid entries
y
n
Keep Held SBA at Coverage Point
This field governs how a covering user who has placed an answered coverage call on hold is
treated if the original principal bridges onto the call.
Valid entries
y
n
Maintain SBA At Principal
Allows a user to maintain a simulated bridged appearance when a call redirects to coverage.
Valid entries
y
n
QSIG VALU Coverage Overrides QSIG Diversion with Rerouting
This field appears if, on the System-Parameters Customer-Options screen, the Basic
Supplementary Services and Supplementary Services with Rerouting fields are both set to
y.
Usage
Immediately redirect an off-net coverage/forwarded call to the next
coverage point.
Do not immediately redirect an off-net coverage/forwarded call to the next
coverage point.
Usage
Keeps the coverage party on the call. The coverage party remains on
hold, but might enter the call along with the principal and the calling party.
Drops the coverage party from the call.
Usage
Enter y to maintain a simulated bridged appearance (SBA) on the
principal's telephone when a call redirects to coverage. DCS with
rerouting will not be attempted after coverage.
When set to n, no SBA is maintained on the principal's telephone. DCS
with rerouting will be attempted, and if successful, the principal will lose
the bridged appearance and the ability to bridge onto the coverage call.
System Parameters Call Coverage/Call Forwarding
Issue 2.1 May 2006 1509