Cisco SPA 525g User Manual page 90

Configuring Supplementary Services
Supplementary Services controls a number of features that are listed in the User window that you
can enable or disable. To display the Supplementary Services features, choose the Voice tab and
click the User menu. Choose yes to enable or no to disable a feature. When the modifications are
complete, click Submit All Changes. Your phone reboots.
You can also enable or disable these features from your phone.
The Supplementary Services are described in the following sections.
Call Waiting (CW Setting)
Use call waiting to alert you by displaying a status message and ringing your phone while you are
on a call to indicate that another call is incoming. If you turn call waiting off, incoming calls do not
ring your phone while you are on another call, and the caller hears a busy signal or message.
Block Caller ID (Block CID Setting)
Use this feature to prevent the caller ID information from being sent by your phone; your phone
number and information does not appear to the person you call.
Block Anonymous Calls (Block ANC Setting)
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 and
your phone will not accept the call. These callers receive a busy signal or message.
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