The app allows you to configure call reception settings:
Whitelist (allow calls),
Blacklist (block calls),
Test incoming call history and blocking settings,
Set permissions required for app use, and
Set blocking settings.
Regular expressions can be used for the Whitelist and Blacklist.
Users unfamiliar with regular expressions may accidentally encounter errors,
but you may need to search for them and learn more.
* Whitelist (allow calls) example
Contacts containing ♡ are accepted
♡
* Blacklist (block) example
Block numbers containing 123
123
Block calls not in your contacts
no number
Blocks incoming calls and allows them to be received normally.