Someone calling herself Amy told me I'd entered a contest (which I haven't) and won a cruise but I had to call her back today at 877-842-0347 or the prize would be released to someone else.  Caller ID indicated only the 443 number and the state of origin as Maryland

i also got a call from Amy saying I had won a cruise.  I didn't know that i had entered a contest (I didn't).  did not call the number back

Information for Filing Telemarketing complaints in Canada and the United States:

CANADA

RCMP Phone busters
Telephone toll free: 1-888-495-8501
Mon-Fri 8:30-5:20 pm (Eastern Time)
E-mail: info@phonebusters.com
RCMP Website is at: http://www.phonebusters.com  
File complaint online:  https://www.recol.ca/intro.aspx?lang=en
(Register with a password and then can continually file complaints)

Canada National Do Not Call Registry, file Complaint:
Canadian Radio-Television and Telecommunications Commission (CRTC)
Telephone toll free: 1-877-249-2782
CRTC online complaints form: https://www.lnnte-dncl.gc.ca/pfplin-fccoin-eng
that is at  www.crtc.gc.ca

Better Business Bureau, Check out a Business, find owner, contact info; file a Complaint:
http://www.bbb.org/canada/

UNITED STATES

US National Do Not Call Registry, file complaint: https://www.donotcall.gov/complaint/complaintcheck.aspx

Federal Trade Commission
http://www.ftc.gov 1-877-382-4357
File complaint online: https://www.ftccomplaintassistant.gov
that is at www.ftc.gov

Federal Communications Commission
Telephone toll free:  1-888-225-5322
http://www.fcc.gov/contacts.html
File complaint online: http://www.fcc.gov/cgb/consumers.html
http://esupport.fcc.gov/complaints.htm
FCC Abandoned Calls Complaint form:
http://www.fcc.gov/cgb/consumerfacts/1088D-R.pdf
email:  fccinfo@fcc.gov

Better Business Bureau, Check out a Business, find owner, contact info; file a Complaint:
http://www.bbb.org/us/

Caller left voicemail saying I'd won a cruise. I couldn't determine if is was a live or prerecorded call. I did not return the call.

I received a call and did not pick up - I am on the do not call list. I always check out numbers before I respond unless I recognize the number