Do Not Disturb feature temporarily blocks incoming calls to the phone. If voice mail is configured, then the incoming calls directly reach voice mail, else the user hears a busy signal or message. Do not Disturb feature does not affect the outgoing calls.
This document explains how to activate or deactivate the do not disturb feature on the Cisco SPA300 series IP Phone.
• SPA301 IP Phone
• SPA303 IP Phone
Step 1. Press DnD softkey to activate Do Not Disturb. The LCD screen displays DND which indicates that the do not disturb feature is activated on the phone.
Note: To deactivate the do not disturb feature, press DnD softkey again.
Step 1. To activate Do Not Disturb, enter *78.
Step 2. To deactivate Do Not Disturb, enter *79.