"Kevin McMurtrie" wrote
It's not a glitch in Sonic's Nomorobo setup. Modern scammers use
rotating random local numbers for Caller ID so that Nomorobo does not
work. If the number was blocked, it would be blocking an innocent
person or business who had their phone number displayed in the scam.
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I just checked a month worth of calls to our Sonic Fusion home phone with
Nomorobo turned on. I found many blocked calls in our records. None were
false positives. There were a couple of false negatives, which meant that my
phone rang more than once. (More than 8 seconds on the record.) Granted, we
are not very active users of the home phone, but we were fully listed in the
white pages of the phone book when there was such a thing. We were getting a
lot of robocalls.
I don't worry too much about false positives. Most of our friends, family
and associates have multiple phone numbers for us, plus they have our
multiple email addresses. So if the home phone doesn't work, they've always
tried alternatives. Even my late father, who would be 90 now, preferred to
use email to contact us. Of course he had been using computers since the
1950's.
I'm very satisfied with Nomorobo based on our two months worth of
experience.
Tak Nakamoto