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Originally Posted by Carla B
That might work for calls that originate in the U.S. But what can they, or will they do about the calls that originate in India? I stopped blocking calls on Ooma a couple years ago. It didn't do any good. They just call from another number. Sometimes folks tell us their number is blocked and it isn't. It's frustrating. Who has the authority to do anything about it? The government or the phone companies?
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Blocking numbers is useless. There are hundreds of billions of possible telephone numbers that can call you, since the CallerID information can be fake information.
It’s very effective to set up a “white list” of telephone numbers that are allowed to “ring through”, all others will be forced to leave voicemails. The junk callers almost never leave voicemail because they know that leaving voicemail is useless. Legitimate unknown callers can leave voicemails.
You can effectively screen out junk calls to your landline using a Digitone Call Blocker, which costs about $90, a one time cost. It has a “black list”, which is useless, and a “white list”, which is extremely effective.