VTech SIP Contemporary Series Master User Manual page 23

Question
I hear noise on the cordless handset and the
keys do not work.
Common cure for electronic equipment.
Suggestion
• Make sure the Cat-5 network cable is
plugged in correctly and securely.
• Unplug the Cat-5 network cable. Wait for 15
seconds before plugging it back in.
• If the telephone is not responding normally,
put the cordless handset in the telephone
base. If it does not fix the problem, try the
following (in the order listed):
1. Disconnect the power to the telephone
base.
2. Disconnect the battery on the cordless
handset.
3. Wait a few minutes before connecting
power to the telephone base.
4. Install the battery again and then place the
cordless handset in the telephone base.
5. Wait for the cordless handset to
synchronize with the telephone base. Allow up
to one minute for this to take place.
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