If authorised you can use this feature to prevent incoming calls on your
extension. Outgoing calls can be made in the normal manner.
A Set T24/25 or the switchboard are able to override the feature if required.
Activate Do Not Disturb
- dial ∗ ∗ ∗ ∗ ∗ 20
When you lift your handset, special dial tone will also be heard to remind you
that the feature is activated.
Cancel Do Not Disturb
- dial 20
Do Not Disturb
25