The DNC only applies to B2C telemarketing. So if your phone number is a legitimate business line, then the DNC doesn't apply. But, if you ask them to take you off their calling list, most companies will comply.
If, however, you've simply listed your home phone as your business number on the DBA form, then "technically" you can report anyone who solicits you. But, since the phone company frowns on you using your home phone as a business line, a spiteful telemarketer could report you to the phone company.
If it is your home phone, I suggest you inform callers that your home phone is listed on the DBA form because you don't have a business line yet, but that you're on the DNC, so please do not call again or you will report them.
Hope that helps.