User Guide for T5 Series IP Phones 
118 
When DND feature is activated, the IP phone supports displaying a large DND icon on the Idle 
screen. 
 
DND is configurable via web user interface at the path Feautres->Forward&DND. 
Note 
Configuring the DND Modes 
There are two DND modes: 
  Phone (default): DND is effective for the phone system. You can apply DND to all line 
registrations on the phone. 
  Custom: DND can be configured for each or all accounts. You can specify individual or all 
line registrations on a phone that has multiple registered lines. 
Procedure: 
1.  Click Features->Forward&DND. 
   
Large DND icon should be pre-configured by your system administrator.