they called but didn't leave a messdage or talk when i answered

Why are these people calling me ? It is 2:05 pm Nov 12, 2013

EXCELLENT INFOMRATION. I have reg our number and it has helped.thank-you.

They keep calling our fax machine, how stupid can they be?  They shave to be using an autodialer.

A call came in this morning, about 10am NS time. No message left, as I was not at home then.

they are text messaging my cell phone with ads for "shoutit.com"so invasive.is there anything i can do about this, like blocking them, or anywhere i can report this? if i could set my phone to block the messages before they come in then that would be great. it would be nice not to have to pay for text messages which come to my phone and are essentially spam.