How can I block a number from a landline?

We used to let the phone ring if we wanted to take no chances until Caller ID came out; after that, we could see who was calling and be more selective about who to leave ringing. Bonus tip: Leaving it off the hook, or unplugging it, results in a peaceful night.

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It was such that a large number of calls came to my phone every day, those that I did not want, they were ordinary spammers who pushed ads and simply wasted my time, without thinking twice, I turned to block spam calls on landline and they were able to warn me against calls I don’t need, it turns out that the program works 24/7 and automatically sees a number that is clearly seen in spam.