32 Years of the Digest ... founded August 21, 1981
The Telecom Digest for December 12, 2013
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Date: Wed, 11 Dec 2013 08:44:38 -0500 From: Pete Cresswell <PeteCress@invalid.telecom-digest.org> To: email@example.com. Subject: Re: Challenge-Response Now Available On CallCentric Message-ID: <firstname.lastname@example.org> Per Telecom Digest Moderator: > Sounds good, but I hope they don't just wait x seconds for "the" > digit to be entered: I've heard telemousketeer calls which start > with a quick string of Touch Tone digits, presumably 1 to 0 in > succession. Yeah... my immediate reaction upon reading the announcement was "I hope that's not all there is to it...". For starters, they need something like "3 strikes and you're out" where the caller either gets flipped to voicemail or totally locked out after that ID hits n incorrect keys. That would be needed to prevent limitless successive calls - each pressing a different key. Multiple key combinations would help too: "23" instead of "2", or even "234". At some level of random combination tries needed, I would hope the economics tip in favor of the phone user. And a whitelist for people I know - so they don't even get the prompt... Especially a whitelist that learns: somebody gets through to me and, if I don't press the special "Blacklist This Turkey" key combo during the call, their ID gets added to the whitelist. Probably not that useful for blocking calls because of ID spoofing - but a nice touch for the people that I know who call: if i neglected to add them to the whitelist, at least they'd only have to enter the digit on the first call. -- Pete Cresswell
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