Message played when called number: "Thank you for calling SSI. We are an independent survey research organization. If you were contacted by us to answer some questions...." this is not the entire message but does provide the stated nature of the call. Searched SSI Survey Research and found this link: http://www.surveysampling.com/
In the top right corner of the page is a link: Received a Call from SSI?. Selecting it provides a page with the following text:
We appreciate your participation in our research and we value your opinion. But if you do not want to participate in the future, we of course understand and respect your decision. To opt-out, please email us at
[email protected] (please include the phone number in the body of the email.) To opt-out by telephone, please call 1-866-360-9563 from within North America or 1-801-379-4094 outside North America to be placed on our no-contact list. If you would like to speak to someone about the call you received, you may contact us toll-free within North America at 866-360-9678, or call 1-801-379-4094 outside North America.
The page also has sort of a FAQs area.