That system only works for callers who are using their real number.
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While you are correct that spammers spoof numbers all the time; however, you are incorrect that the Digitone will only block “real” numbers & not spoofed ones. The Digitone works off of whatever shows on the CID & that is either a “spoofed” number or a real one. I have blocked ALL calls except those I allow, using the “Global Block Method”. The calls allowed are:
1. Family/friends/business on “invited” or “VIP” lists
2. Calls showing our area code number (real or spoofed - whatever shows on CID) because I have put our area code on the “invited” list
We do get ‘spoofed’ and ‘real’ calls within our own area code. As they occur, I either block the number individually or block by area code/exchange. I can also block up to 20 by name. The only calls I have to actively block are those with our own unblocked area code showing on CID that prove to be spammers, frequent hangups, robo callers or whatever.
Qiviut wrote: “We do get ‘spoofed’ and ‘real’ calls within our own area code. As they occur, I either block the number individually or block by area code/exchange. I can also block up to 20 by name. The only calls I have to actively block are those with our own unblocked area code showing on CID that prove to be spammers, frequent hangups, robo callers or whatever.”
You’re going to run out of blocks.