During a certain period, if you do not want to be disturbed, you can go to Setting>DND to enable DND function. By default, DND is not enabled.
Step 1 Go to Setting -> DND.
Step 2 Set period.
Step 3 Set week.
Note: Extension VTH is the synchronized with master VTH.
Step 1 Setup DND time.
Step 2 When you call VTH from the VTO, the system will prompt you ‘the line is busy now’.