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T
ROUBLESHOOTING
C
ID
ALLER
PROBLEM
No Display
Data Error Message
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C
W
ALL
AITING
PROBLEM
You hear call
waiting tone but
number does not
appear in display.
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T
ELEPHONE
PROBLEM
No dial tone
24
T
IPS
SOLUTION
• Try replacing the battery.
• If you are using AC power, make sure that the
unit is connected to a non-switched electrical
outlet. Disconnect the unit from the plug and plug
it in again.
• The unit displays this message if it detects
anything other than valid Caller ID information
during the silent period after the first ring. This
message indicates either the presence of noises
on the line, or that an invalid message has been
sent from the telephone company.
SOLUTION
• You must subscribe to Call Waiting for this
feature to work.
• Even if you have subscribed to both Call
Waiting and Caller ID, you must call your phone
company and tell them to integrate your Call
Waiting and Caller ID services.
SOLUTION
• Check installation:
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