"Person" means and includes individuals, partnerships, associations or corporations.
"Collection agency" means and includes any person engaged in the business of collection for others any account, bill or other indebtedness except as hereinafter provided. It includes persons who furnish collection systems carrying a name which simulates the name of a collection agency and who supply forms or form letters to be used by the creditor, even though such forms direct the debtor to make payments directly to the creditor rather than to such fictitious agency.
"Collector" is a person acting under the authority of a collection agency under subdivision 3, and on its behalf in the business of collection for others an account, bill, or other indebtedness except as otherwise provided in this chapter.
"Exempt out-of-state collection agency" means a collection agency that has no physical presence in this state, that is engaged in the business of collecting claims on behalf of creditors that have no physical presence in this state, and that only conducts business within this state by means of interstate communications including telephone, mail, and facsimile transmission.