Auerswald COMpact 3000 analog Operating Manual page 204

Functions
Do-not-disturb
Switching the Do-not-Disturb Function On/Off
Switching the Do-not-Disturb Function On/Off via the Internal Telephone
Requirements:
– Authorization Controlling of the PBX via telephone assigned to the subscriber
1. Pick up the receiver of the telephone in question.
2. Dial one of the following character strings:
##8*211#: Enables the do-not-disturb function.
##8*210#: Disables the do-not-disturb function.
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COMpact 3000 analog/ISDN/VoIP - Firmware V4.0 - Operating Manual V06 12/2020