Hmm, how wouldn't a phone that simply doesn't ring at all unless a known, whitelisted caller ID is being transmitted not work, though? Granted, you might actually miss calls from people (or businesses) that you don't have whitelisted that way, which would create its own set of problems, but it should stop phone spam dead in its tracks.
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branchandroot
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Date: 2010-04-28 08:21 pm (UTC)Hmm, how wouldn't a phone that simply doesn't ring at all unless a known, whitelisted caller ID is being transmitted not work, though? Granted, you might actually miss calls from people (or businesses) that you don't have whitelisted that way, which would create its own set of problems, but it should stop phone spam dead in its tracks.