Using Advanced Phone Features
Configuring Privacy and Security Features
Cisco SPA525G and Cisco SPA525G2 SIP IP Phone User Guide 57
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Configuring Privacy and Security Features
Use this section to configure your privacy and security features. You can also
configure these features by using your PC and the phone web user interface. See
“Block Caller ID (Block CID Setting),” on page 87 and the “Block Anonymous
Calls (Block ANC Setting),” on page 87.
Blocking Caller ID
You can block Caller ID from your phone so that your phone number does not
appear on a phone that you call.
To block Caller ID:
STEP 1 Press Setup.
STEP 2 Scroll to User Preferences and press Select.
STEP 3 Select Call Preferences.
STEP 4 Scroll to Block Caller ID and press the Right Arrow key to choose On.
STEP 5 Press Set.
Blocking Anonymous Calls
Blocking anonymous calls prevents calls with unknown Caller ID from ringing your
phone. (For example, if a caller set his phone to not display Caller ID, the call is
considered anonymous.) These callers receive a busy signal or message when
calling your phone if anonymous calls are blocked.
To block anonymous calls:
STEP 1 Press Setup.
STEP 2 Scroll to User Preferences and press Select.
STEP 3 Select Call Preferences.
STEP 4 Scroll to Block Anonym Call and press the Right Arrow key to toggle the feature on
(checked) or off (unchecked).