Sony SPP-S2730 Operating Instructions Manual page 77

Symptom
The caller's name and/or
phone number does not appear
on the display.
The caller's name and/or
phone number does not
appear on the display during
call waiting.
You cannot dial the number
from the Caller ID list.
The memory match function
does not work.
You cannot use voice mail
service.
Remedy
• 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. "UNKNOWN NUMBER/
NAME/CALLER" will appear on the display.
• The call was "blocked." "BLOCKED NUMBER/
NAME/CALL" will appear on the display.
• You have answered the call while "** RINGING **"
was displayed. Please answer the call after the second
ringer sound.
• Make sure you have subscribed to "Caller ID with call
waiting" service (page 68).
• Make sure nobody is talking with another phone on
the same telephone line.
• Make sure you entered your area code correctly
(page 17).
• You may need to change the number of digits of the
phone number (page 66).
• This function may not work when the phone is
connected to a Private Branch Exchange (PBX).
• 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 phone number with an outside line
access digit in the Phone Directory because the phone
is connected to a Private Branch Exchange (PBX), the
phone number will not match the Caller ID data.
• If you have stored phone number of less than 7 digits
in the Phone Directory, the phone number will not
match the Caller ID data.
• Make sure you have subscribed to voice mail service.
• If you move or change your telephone company, reset
this phone.
continued
Additional Information
77 US