Do not disturb is the sign hung out to keep staff from knocking. Put out the do not disturb, ignore the do not disturb.
It is respected everywhere and overridden after a day or two, since the hotel must know the room is safe. Phones borrowed the phrase for the setting that silences everything.
1phrasedo not disturbThe sign hung out to keep staff from knocking.
“The do not disturb had been on the handle since Tuesday.”
do not disturb is a sign.
Practised in Hotel & Staying Away