<文档标题>Fanvil Technology Co., LtdHQ Add: Level 3, Block A, Gaoxinqi Building, Anhua Industrial Park, Qianjin 1 Road, 35th District, Bao'An, Shenzhen, 518101 P.R. ChinaTel: +86-755-2640-2199 Fax: +86-755-2640-2618 Email: sales@fanvil.com support@fanvil.com Beijing Tel:+86-10-5753-6809Suzhou Tel: +86-512-6592-0605 SEA Tel: +60-3-512-21997To quickly enable or disable the DND on all lines,When the device is in the default standby mode, Press [DND] button to enter the DND setting interface, select line or phone to enable DND ,theicon will become red . Press [DND] button to enter the DND setting interface and disable DND,the icon will be becomeblue .Figure 40 - DND EnabledIf user wishes to enable or disable DND on a specific line, user could change the DND mode in DNDconfigurations. Press [DND] then you will enter into the edit page of [DND] . Press left/right navigator key to change the DND mode or DND state on specific line. Whendone, press [OK] button to save the changes. User will see icon become red .