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Still getting unknown callers coming through

I am still getting calls coming through that are not on my contact list. They will call twice some dont leave a message. Why is this happening?

Hello,

Please first check that “Block all except contacts” is still enabled:

Callfilter.app → Filter priority

We have seen a few cases where this filter was disabled for an unknown reason.

For more stable work, I also recommend disabling all other filters in Filter priority and leaving only “Block all except contacts” enabled. This helps the app avoid unnecessary checks.

If the filter is enabled but unknown callers still come through, Android may be limiting Callfilter.app in the background. Please open:

Callfilter.app → Optimization

and follow the available recommendations there.
 
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