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4. Press MUTE (ENTER) again. The
display shows:
5. Press VOLUME to choose the
setting.
6. Press MUTE (ENTER).
To continue programming the remain-
ing lines press VOLUME
and then
perform steps 4-6.
6. CO Line Ring Tone
Default Setting: 1
Range: 1-4
You can choose one of four different
ringing tones for your telephone. The
selection chosen will apply to all four
CO lines on your telephone.
1. Press PROGRAM.
2. Press
VOLUME until the display
shows:
3. Press MUTE (ENTER). The display
shows:
4. Press VOLUME to select a dif-
ferent ring tone. You will hear a
sample tone for each choice.
5. Press MUTE (ENTER).
7. Delayed Ringing
Default Setting: Disabled
Range: Disable, 2 seconds to 30 sec-
onds (2 second increments)
You may choose to have the CO line
ringing delayed for overflow and caller
ID applications.
1. Press PROGRAM.
2. Press
VOLUME until the display
shows:
3. Press MUTE (ENTER). The display
shows:
4. Press VOLUME to select the
delay time between 2 seconds and
30 seconds (in 2 second incre-
ments).
5. Press MUTE (ENTER).
8.
CO Trunk Connection
Default Setting: All Lines Connected
Your telephone can detect another tele-
phone, facsimile, or modem that is in-
use on one or more of the CO lines. This
privacy feature will prevent accidental
instruction by another VT4121 speak-
erphone user. The “Line-In-Use” circuit
will light the CO line button if the line is
not physically connected. For instance,
if you only have lines 1,2, and 3 con-
nected you can disable line 4( if you do
not disable that line, the lamp will re-
main lit steady even though you can’t
access the line). When you disable a
CO line the lamp and button will not op-
erate.
PROGRAMMING