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5.3
EXTERNAL CALL
An extension can be in two different modes.
When in Direct External Dialing mode the extension is connected to the next free external CO
line directly.
When in Non Direct External Dialing mode the extension can get an external CO line by dialing
'9' or by tapping the Hook Switch.
5.3.1
DIRECT EXTERNAL DIALING
When in Direct External Dialing mode, the extension will hear dial tone from the external CO line
after lifting the receiver. The external number can now be dialed directly. You should dial at least
three digits within a short period, otherwise the system will disconnect the external call.
To make an internal call, you must lift the receiver and dial * to get internal dial tone before
dialing the desired extension number.
When the extension is in Direct External Dialing Mode you can press the "Redial" Button
to redial the last number dialed.
5.3.2
MAKING AN EXTERNAL CALL BY DIALING 9
Lift receiver to get internal dial tone. Dial 9 to get external dial tone and then dial the desired
external number.
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