Frequently asked questions about LineLayer

No. LineLayer doesn't identify who an unknown caller is, and it doesn't use a crowdsourced database to label numbers as spam. It filters calls based on rules you set — like blocking numbers outside your contacts or numbers you've explicitly blocked — not by looking numbers up.

That depends on the rules you configure. You can choose to block non-contact numbers, allow them, or make exceptions using allow lists and Expected Call Mode for a call you're waiting on.

A way to temporarily relax your relevant filtering rules while you're waiting for a legitimate call from a number you don't recognize, such as a callback from a clinic or delivery driver. Your normal rules apply again once it's off.

Not universally. Android's call-screening role — the mechanism LineLayer uses to apply rules before a call rings — doesn't receive calls whose presentation is restricted, unknown, unavailable, or payphone, so LineLayer can't guarantee blocking every private or hidden call. LineLayer's rules reliably apply to calls Android makes eligible for screening — most usefully, visible numbers that aren't in your contacts.

Yes. Numbers on your allow list are let through regardless of your other filtering rules.

Yes. LineLayer's call history shows the reason a call was allowed or blocked, based on the rule that applied.

LineLayer's call filtering is designed around local processing on your device, evaluated against the rules you set, rather than depending on a large shared database of phone numbers.

LineLayer is available for Android on Google Play.