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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Screen reference
914System Parameters Call Coverage / Call Forwarding
17
■ The Value-Added Lucent (VALU) field on the System Parameters
Customer Options, 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 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 the DEFINITY ECS 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.
DEFINITY ECS 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.
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 cell phones and you should set this field to
n.
Maintain SBA At Principal
Allows a user to maintain a simulated bridged appearance when a call redirects
to coverage
.
Valid entries Usage
y
Immediately redirect an off-net coverage/forwarded call to the
next coverage point.
n
Do not immediately redirect an off-net coverage/forwarded
call to the next coverage point.
Valid entries Usage
y
Enter
y
to maintain a simulated bridged appearance (SBA) on
the principal’s phone when a call redirects to coverage
.
n
When set to
n
, no SBA is maintained on the principal’s phone.