Deactivate group control of trunks by attendant.
If a trunk group is controlled by the attendant, the Cont light for
the trunk group will be lit.
1. Press Cont Deact button. The Cont Deact lamp lights steadily.
2. Press Trunk Group Select button of the trunk group for which
control is to be deactivated while observing the Cont Deact lamp and
the Cont lamp for the specified Trunk Group Select button.
If Cont Deact lamp goes dark; Cont lamp for the specified Trunk
Group Select button goes dark - operation allowed.
If Cont Deact lamp flutters, then goes dark; Cont lamp for the
specified Trunk Group Select button remains lighted - operation
denied; return to Step 1.