Operation Manual

91BusinessPhone – Cordless DT400/DT410/DT420/DT430
Installation
Charging the battery
When the battery requires charging, you will hear an attention beep
and the display will show the “Low battery” icon.
Place the Cordless in the desktop charger as shown in the
figure below
The charging process will start automatically, indicated by a red
light on the charger. It takes approximately one hour to fully charge
the battery.
The handset is fully operational while stored in the desktop charger.
If you have another battery, you can also place just the battery
alone in the desktop charger.
When charging is complete, the charger light will turn green.
Notes:
Do not connect your Cordless to the charger without a
battery.
If the battery is completely flat it can take a few minutes
before the red light on the charger is lit.
If the standby time for your Cordless becomes too low, you
should replace the battery.
Only use the charger that is delivered with your Cordless to
charge the battery.
It is normal for the battery to get slightly warm while
charging.
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