Actually, I have a business phone installed in my house, too. I use my VoIP provider's IVR, caller ID filtering, and time condition services to automatically direct most of these calls to the bit bucket late at night and early in the morning. I don't depend on a "Do Not Call" list, because I know that businesses are not eligible to sign up. So that's how I avoid the annoyances of having a business line in my house.
As far as your report being helpful, let's examine it carefully:
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called my business phone at 10 p.m. and 12 a.m. on a Sunday evening.
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OK. So we know they called you late on Sunday evening.
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my business phone is installed in my house.
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That's your choice. Most people don't do that, precisely because the DNC list isn't for business phones. Why don't you turn it off or unplug it at those hours? And how does our knowing that they called you on a "business phone" that "is installed in [your] house" help anyone help you, anyway?
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very annoying.
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Yes it is, but that isn't helpful to report here. ALL the numbers reported here are very annoying to someone.
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the line said to report an unwanted to suspicious calls to your local authority.
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The "line" is an inanimate object that can't speak, and you didn't say WHICH line said that, either, yours, the caller's, or another. Not helpful.
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the message also said the call didn't associate with a particular person.
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What "message?" Is a "line" the same as a "message?"
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I don't know what that means.
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If you don't know what that means, how do you expect us to know what it means, when you haven't even made clear to us which or what "that" you are referring to? Not helpful.
559 515 8002 called me in Iowa at 3:58 AM. I called back and got the same recorded message about not being associated with any particular person. Strange.