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Using Advanced Phone Features
Using Star Codes
Cisco Small Business SPA50X and SPA51X Series SIP IP Phone User Guide 59
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You can set just one of these choices, if necessary.
Using Star Codes
Your IP phone can support numerous “star codes” to access phone supplementary
services. These codes, which start with *, are entered before dialing a telephone
number and provide services. For example, to block caller ID (star code 67), you
would dial *67, followed by the telephone number you are calling.
Following is a list of commonly-used star codes. Some star codes may not be
available to you; consult your system administrator for more information.
Code Definition
16 Activate Secure Call feature for all calls.* See Using Secure Call, page 50.
17 Deactivate Secure Call feature for all calls.* See Using Secure Call,
page 50.
18 Activate Secure Call feature for a single call.* See Using Secure Call,
page 50.
19 Deactivate Secure Call feature for a single call.* See Using Secure Call,
page 50.
36 Pick up a call at another extension.* See Picking Up a Call, page 40.
37 Pick up a group call.* See Picking Up a Call, page 40.
38 Park a call.* See Parking a Call, page 41.
39 Unpark a call.* See Parking a Call, page 41.
56 Activate call waiting. See Setting Call Waiting, page 39.
57 Deactivate call waiting. See Setting Call Waiting, page 39.
66 Activate Call Back. Causes the IP phone to repeatedly dial a busy number
until the called party rings or answers. The IP phone then alerts you that the
call has gone through.
67 Block Caller ID. See Blocking Caller ID, page 49.