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70 Using features
Using features
To use a feature, enter the feature code and watch your
telephone display for instructions. Different displays come up at
different times, depending on how you invoke the feature and the
choices you make while using the feature. If you want more
information about a display, look it up in the Displays section of
each feature listing.
Availability of features
Some features work only in certain circumstances. For example,
Disconnect Supervision must be available and assigned to a line
on your telephone to allow you access to the following features:
Line Redirection of an external call to an external number
Unsupervised Conference between two external calls
Transfer between two external calls
Disconnect Supervision is available when an Open Switch
Interval (OSI) message is provided on a line by the public
telephone system.
If Disconnect Supervision is available, your Customer Service
representative assigns Disconnect Supervision to lines in
Configuration programming. When Disconnect Supervision is
assigned to a line, the
system monitors the length of the
OSI on that line to determine when an external caller hangs up.
This allows the system to release the line for other uses.
The Notes section of each feature listing contains information
concerning any restrictions affecting the availability of the
feature.
Owner’s Handbook PO84262701