Haven't checked, but it may not apply to businesses - I'd be surprised if a company could opt all of its phone numbers out of all potential vendor calls.
That is correct. Do Not Call (the USA law) does not apply to businesses.
We found a great remedy: answer their calls with a soundboard. We like the Mr. Rogers soundboard [1]. Its fun, harmless, and they'll stop calling very quickly.
The do not call law doesn't apply to nonprofits (including those seeking political contributions). It most certainly does apply to businesses. For each offense after asking to be placed on the do not call list you're entitled to 500-1500 dollars. You just need to take a lot of notes and take the offending party to small claims court.
Does not apply to businesses for incoming calls, which is the relevant interpretation of "applies to businesses" in this situation: a restaurant business receiving unwanted calls from another business.
Of course it applies to outgoing calls from businesses, as that's the entire point of the law.
