Yealink SIP-T4X Administrator's Manual page 98

Administrator's Guide for SIP-T4X IP Phones
To configure anonymous call rejection via phone user interface:
1. Press Menu->Call Features->Anonymous.
2. Select the desired line and then press Enter soft key.
3. Press
Anonymous Rejection field.
4. (Optional.) Enter the anonymous call rejection on code in the On Code field.
5. (Optional.) Enter the anonymous call rejection off code in the Off Code field.
6. Press the Save soft key to accept the change.
Do Not Disturb (DND) allows IP phones to ignore incoming calls. DND can be configured
on a phone or per-line basis depending on the DND mode. Two DND modes:
Phone (default): DND feature is effective for all accounts on the IP phone.

Custom: DND feature can be configured for each or all accounts.

A user can activate or deactivate DND using the DND soft key or DND key. The DND
configurations on IP phones may be overridden by the server settings.
The DND on code and DND off code configured on IP phones are used to
activate/deactivate the server-side DND feature. They may vary on different servers.
Return Message When DND
This feature defines the return code and the reason of the SIP response message for the
rejected incoming call when DND is enabled on IP phones. The caller's LCD screen
displays the received reason.
Procedure
DND can be configured using the configuration files or locally.
Configuration File
82
or , or the Switch soft key to select the desired value from the
<MAC>.cfg
<y0000000000xx>.cfg
Configure DND in the custom
mode.
For more information, refer to
Not Disturb on page 292.
Assign a DND key.
For more information, refer to
Key on page 392.
Configure the DND mode.
Configure DND in the phone
mode.
Specify return code and reason of
Do
DND