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First, dial the call normally. Then
activate the Temporary Tone feature
by pressing the (TONE) key. You
can then press the numbers or symbols
you need, and your phone will send the
proper signals.
When you end the call, the phone will
automatically go back to PULSE
service.
Ear Piece Volume Adjustment
The volume level of the incoming
audio can be adjusted by pressing
the or keys. This can only be
done while the phone is in use.
The initial press of either the or
a keys will display the current ear
piece volume setting.
ADVANCED FUNCTIONS
To adjust the volume press the
or keys to select the desired
level. As you press the keys, the
volume indicator will increase or
decrease accordingly.
Extension In Use Indication
When another telephone on the same
line is currently in use, the VT 1421
displays the following message:
Headset Jack
The VT 1421 has a standard 2.5mm
headset jack. When a compatible
headset is connected, the earpiece
receiver and handset microphone are
disabled.
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