“Specifically how does the call blocker work? Is it a feature built into the phone or is a service required? What numbers will be allow through and what numbers will not be?”
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Built in feature
Sorry, there was a problem. Please try again later.Now xtra fees it is built into the phone. You can select how you want that feature to work and be inclusive or exclusive. It is simple and extremely effective. We are no longer receiving spam calls that go thru and none are being recorded to ease thru when you check your calls.
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