Embedded Files
Call Prefix Filter is a free service. It does not send user data to third parties.
The Android app requests several permissions to function properly.
Phone state
Phone state
The app detects incoming phone calls and hangs up as necessary. No longer required since v3.0.0.
Read contacts
Read contacts
The app checks if the incoming phone number is found in the contact list.
Read call log
Read call log
The app retrieves the phone call log for user input. No longer required since v3.0.0.
Storage
Storage
The app uses flash storage area for CSV file export and import.
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