programmable device to block unwanted calls?

I'm looking for a device, perhaps the size of a caller ID box, that can be programmed to block:

800.xxx.yyyy 000.000.0000 'unknown' etc.

or anything I desire/program to block.

The only device I could find was this:

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But I thought $100 was a bit steep.

Is this the only option?

I don't want software (who wants to have a computer powered up with a modem and software analyzing phone calls? Seems a bit inconvenient/sloppy).

Reply to
jessica6_2000
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