VTech Telephone User Manual page 14

In Case Of Difficulty
Common Cure For Electronic Equipment
If the unit does not seem to be responding normally, then try putting the Handset in
the cradle. If it does not seem to respond, do the following(in the order listed) :
1. Disconnect the power to the Base.
2. Disconnect the Handset battery.
3. Wait a few minutes.
4. Connect power to the Base.
5. Re-install the battery pack, and return the Handset to the charge cradle.
6. After a few seconds, try using your Handset again.
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