Do Not Disturb Settings are used to configure the Do Not Disturb service. The service is used to turn off the phone ringer and may only be enabled from the handset with the appropriate calling code. If you have Do Not Disturb service enabled along with the Voice Mail Service, all incoming calls will directly go to the extension's voice mailbox.
The Do Not Disturb Settings page consists of the following components:
The Actual State field indicates the state of the service (active or not active). It also indicates the time left until the end of Do Not Disturb service functionality or "Service is not active" if the service is disabled.
The Expiration Timeout drop down list is used to choose the period for the phone ringer to be off when enabling the Do Not Disturb service.
The Send Message to Caller checkbox enables a voice message notification to be sent to callers if the Voice Mail Service is disabled on the extension. If the Send Message to Caller checkbox is selected, but the Voice Mail Service is disabled on the extension, a voice message that the called destination is temporarily unavailable will be played to callers. If the checkbox is not selected, incoming calls will be routed to the extension's voice mailbox if available or will be unconditionally disconnected.
An extension with DND enabled can be reached again as soon as the service is disabled or the Expire Timeout period is over.