2
Location of Controls
Connection
Operation Board Angle Adjustment
DSS Buttons with Busy Lamp Field (BLF):
To access an extension, simply press a DSS
button.
These buttons also can be assigned for the
One-touch Dialling and reassigned to other
features.
The BLF indicates the current status of the
corresponding extension.
CAUTION:
Ensure the cord is inserted in the grooves and the hook (
) to prevent
damage to the connector or the cord itself.
The angle of the operation board can be set to one of eight angles
(level 1 = 0°, level 8 = 45°).
CAUTION:
Hold the operation board until the operation board is secured at the
desired angle. Make sure you do not pinch your fingers when
raising or lowering the operation board.
To raise:
Gently lift the operation board one level at a time.
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
84
83
82
81
80
79
78
77
76
75
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73
72
71
70
<Back view>
Connect to a PBX.
The telephone line cord
(included)
A
DT390UK_QRG_CE1731.fm Page 2 Monday, June 30, 2008 5:15 PM
