Sony IT-M602 - Manual (Page 37)

Symptom Remedy
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The caller's name and/or
phone numbers does not
appear on the display. Make sure you have subscribed to Caller ID service.
Caller ID service may not work when the phone is
connected to a Private Branch Exchange (PBX).
The call is made through company which does not
offer Caller ID service. "OUT OF AREA" will appear
on the display.
The call was "blocked." "PRIVATE" will appear on
the display.
You have answered the call while "t^RINGING^*"
was displayed. Be sure to answer after the Caller ID
data is displayed.
Make sure your area code is entered.
The caller's name and/or
phone numbers does not
appear on the display during
call waiting. Make sure you have subscribed to "Caller ID with call
waiting" service (see page 32).
You cannot dial the number
from the Caller ID list.
Make sure you entered your area code correctly
(pagel2).
This function may not work when the phone is
connected to a Private Branch Exchange (PBX).
The memory match function
does not work. If the call is from an office which uses multiple lines,
the phone number may not match the number you put
in the memory.
If you have stored the phone number with an outside
line access digit on the one-touch dial buttons because
the phone is connected to a Private Branch Exchange
(PBX), the phone number will not match the Caller ID
data.
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Additional Information 137'