These ppl called today @ 2.55PM  & hung up after 4 rings,never heard of them............

Called my house at 4:10am said nothing phone just beeped. I called back and message box full

Called at 3:05 today. Fax tones left in my voicemail.

This # called my cell and just beeped.

Do not pick up unknown numbers.  There are a large amount of spam callers out there.  Even if you ONLY pick up the phone and talk, that tells them that your line is a live number.  Once they know that, you will begin receiving more and more scammers trying to tell you a variety of stories, ranging from claims that you owe money to the IRS to "debt consolidation" services.  Just avoid at all costs.