The SIT tone has been on my land line's answering machine for almost a
I don't have a "Control" phone next to my land line, so I cannot say if
it helps any - but the number of robo calls is still pretty bad even
after a year.
I didn't really expect much... but hoped that the robocallers used by
political organizations during the past election season just *might*
have it programmed in to remove the number from their dialing list if
they hear a SIT tone bco cost considerations. But my guess is that
mostly they don't.
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