Although registration is designed to prevent most unwanted telemarketing calls, it will not stop all sales calls. Michigan law (Public Act 612, sections 1(m)(i), 1(m)(ii), 1(m)(iii), 1e(a), 1e(b), and 1e(c)) provides for some exceptions:

• Charitable organizations.
• Public safety organizations.
• Political organizations.
• Companies with which a person has previously conducted business unless the customer has specifically requested to be added to that company's do-not-call list.
• Businesses that request face to face meetings but do not urge the customer to make a decision regarding a purchase at the time of the call.
• Companies that have the recipient's prior consent.
• Companies that do not encourage the purchase, rental or investment in goods or services, such as companies conducting a survey or seeking a donation or contribution.

Federal Exemptions

• Charitable organizations.
• Political organizations.
• Organizations with which you have an established business relationship can call you for up to 18 months after your last purchase, payment or delivery - even if your name is on the national Do Not Call Registry. If you ask a company not to call you, it must honor your request, even if you have an established business relationship.
• Companies to which you've made an inquiry or submitted an application can call you for three months.
• Companies that do not encourage the purchase, rental or investment in goods or services, such as companies conducting a survey or seeking a donation or contribution.