Samsung
Allow Repeat Callers in Do Not Disturb auf Samsung
Do Not Disturb on Samsung phones silences calls, messages and notifications by default. This is useful during meetings or at night, but it also blocks urgent calls from someone trying to reach you twice in a row.
The Repeat callers exception solves exactly that case. If the same number calls again within 15 minutes, the second call rings through with sound, even while Do Not Disturb is active. The first call still stays silent.
You control this behavior under Tap on Settings ➔ Tap on Notifications ➔ Tap on Do not disturb ➔ Tap on Calls, messages and conversations ➔ Enable or disable Repeat callers. Turning it on lets urgent double calls through. Turning it off keeps every call muted regardless of how many times someone tries.
When to disable it
Disable Repeat callers if you get frequent automated or spam calls that redial within minutes, since those can also trigger the exception and break through your silence. In that case, rely on starred contacts or scheduled Do Not Disturb exceptions instead.
This setting only affects calls. Messages and conversations have their own exception toggles in the same menu.