What causes the screeching feedback when you’re on the phone with someone who is in the same location?
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Think of the phone as playing shadow, but It doesn’t repeat, it just tells the other phone what to say out loud. So if a dog barks, phone 1 is telling phone 2 to bark. When the phone 2 barks, and both phones are in the same room, phone 1 hears it, and again tells phone 2 to bark. At the same time, phone two is doing the exact same thing to phone 1 – sending bark and hearing barks. Pretty soon, all you hear is a bark on top of another bark on top of another bark (even though there was only ONE real bark to begin with). In real life, you don’t just get barks, you get every noise that’s happening in the room multiplied over itself. That’s the screeching feedback.
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