Yealink SIP-T2 Series Administrator's Manual page 302

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
1-Custom, you can configure DND feature for each or all accounts.
Default 0
Web UI Features->Forward&DND->DND->Mode
Parameter features.keep_dnd.enable
It configures if the DND state persists between calls after you activate DND during the call.
Description
Note: To activate DND during the call, you need to configure a DND key in advance. It is not applicable
CP920 IP phones.
0-DND state is automatically deactivated after the call.
Permitted
1-DND state persists across calls. The phone stays in the DND state until you deactivate the DND manu-
Values
ally.
Default 1
Parameter features.dnd.emergency_enable
It enables or disables the IP phone to receive incoming calls from authorized numbers when DND feature
is enabled.
Description
Note: The authorized numbers are configured by the parameter "features.dnd.emergency_authorized_
number". It works only if "features.dnd.allow" is set to 1 (Enabled).
Permitted
0-Disabled
1-Enabled
Values
Default 0
Web UI Features->Forward&DND->DND->DND Emergency
Parameter features.dnd.emergency_authorized_number
It configures the authorized numbers the IP phone can receive incoming calls from even if DND feature is
activated.
Multiple numbers are separated by commas.
Description
Example:
features.dnd.emergency_authorized_number = 123,124
Note: It works only if "features.dnd.allow" and "features.dnd.emergency_enable" are set to 1 (Enabled).
Permitted
String within 511 characters
Values
Default Blank
Web UI Features->Forward&DND->DND->DND Authorized Numbers
Parameter features.dnd_refuse_code
It configures a return code and reason of SIP response messages when rejecting an incoming call by DND.
A specific reason is displayed on the caller's phone screen.
Description
Note: For Yealink IP phones, it works only if "features.dnd.allow" is set to 1 (Enabled).
404-Not Found
Permitted
480-Temporarily Unavailable
Values
486-Busy Here, the caller's phone screen will display the reason "Busy Here" when the callee enables
296
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<y0000000000xx>.cfg
<y0000000000xx>.cfg
<y0000000000xx>.cfg