National Do Not Call registry...

It sure does for a business phone. But FYI that list is sold on a regular basis because companies have to know if your on the list or not. So some get away with calling you once and if you mention the DNCL they back away careful and appologize. I worked in the telephone sales industry for quite some time and seen this happen on a regular basis. Also if you dont want these calls and your not on the list. Mention it anyways often times they will give up.