Hi, I'm trying to block all calls except those in my Contact list. Is there any way this can be done inside Android, or is this something only an app can do? If possible, I'd like to avoid such apps.
edit: Recently I've been getting unwanted calls about once-a-day, and the phone number is always different.
edit: Recently I've been getting unwanted calls about once-a-day, and the phone number is always different.
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