Enable/Disable Anonymous Call Block With Message; Call Screening – All Callers; Call Screening – Custom Number; Allow Custom Caller - Cisco 6851 Series User Manual

Step 2 Dial *85 to disable Anonymous Call Block.
• You will hear a prompt saying, "Your anonymous call rejection service has been deactivated".

Enable/Disable Anonymous Call Block with Message

Anonymous caller will hear a message indicating anonymous callers are not allowed.
Step 1 Dial *95 to enable Anonymous Call Block with Message.
• You will hear a prompt saying, "Your anonymous call rejection service has been activated. All incoming
calls will be checked for number privacy before they are allowed to complete to your line".
Step 2 Dial *85 to disable Anonymous Call Block with Message.
• You will hear a prompt saying, "Your anonymous call rejection service has been deactivated".
Call Screening – All Callers
If you don't want to receive calls from anyone, you can use this feature and then enable only specific callers to
reach you (see Allow Custom Caller).
Step 1 Dial *64 to enable All Other Callers Block.
• You will hear a prompt saying, "Your selective call accept service has been activated".
Step 2 Dial *74 to disable All Other Callers Block.
• This will allow calls from everyone NOT specifically blocked.
• You will hear a prompt saying, "Your selective call accept service has been deactivated".
Call Screening – Custom Number
If you want to screen calls from a specific number, you can use the Custom Call Screening feature to control who
can call your phone and what happens when they do. This can be done via the online voice portal or star code.

Allow Custom Caller

If you have blocked all callers and want to allow a specific caller to contact you, use this feature.
Step 1 Dial *59
Step 2 Enter your voicemail PIN followed by #.
Step 3 Enter the number to be blocked followed by #.
• You will hear a prompt saying, "Calls from [phone number you entered] will be allowed".
Block Custom Caller
If you have allowed all callers and want to block a specific caller, use this feature. The caller will hear a busy signal
instead of reaching you.
Step 1 Dial *60
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Cisco IP Phone 6851 Series User Guide