AT&T E5640 User Manual page 23

5.8 ghz expansion handset for use with at&t model e5640; e5643b; e5644b; e5655
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Troubleshooting
Problem
Suggestion
Day of the week
is incorrect on
the answering
system after the
clock is reset
by the caller ID
function
CL flashes in
message window
Common cure
for electronic
equipment
Reset the year when setting the clock on the
answering system.
Reset the clock on the answering system.
If the unit is not responding normally, try
putting the cordless handset in the telephone
base or the charger. If it does not seem to
respond, try the following (in the order listed):
Disconnect the power to the telephone base.
Disconnect the battery on the cordless
handset and the spare battery in the telephone
base.
Wait a few minutes before connecting power
to the telephone base.
Re-install the battery and place the cordless
handset into the telephone base or charger.
Wait for the cordless handset to synchronize
its connection with the telephone base. Allow
up to one minute for this to take place.
19

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This manual is also suitable for:

E5643bE5644bE5655E560-2E560-5

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