Sony SPP-ID910 - Manual (Page 20)

Caller ID service (continued)
The caller’s name or phone number will not be displayed in the following cases;
• The call is made through a telephone company that does not offer Caller ID
services (including international calls). In this case “UNAVAILABLE” will
be displayed.
UNAVAILABLE
If the call was “blocked”. For privacy reasons, many states allow callers the
option to prevent his or her telephone data from being displayed on the
other party’s Caller ID display. If you receive a call that was “blocked” in
this way, “PRIVATE” will be shown on the display.
PRIVATE
N
V y
If the call is from an office that uses multiple lines, the phone number
displayed may not match the number you use to call the extension.
20
1
If an error is detected with Caller ID
When Caller ID information is incomplete, the display will
change to “TRANSMISSION ERROR”.
BN
TRANSMISSION
ERROR
This does not indicate a problem with your unit. Notify your
telephone company if it continues to appear often.
Advanced Features