Caller never leaves any message. Just keeps calling every few days.

The caller said his name was Edward, i did block the number from my house phone.

These people call around 8 pm each night.  They usually hang up before the answer machine can come on.  When I've answered, there's no one there.  I just called the number back, and I reach a call center for Maximum Research Incorporated.  If they were really interested in doing research, they'd actually talk to people.  Shame on 'em.  I'm blocking this number.

Caller ID shows Morristown, NJ but they don't leave a message.  Call comes in on land line.  I don't answer calls when I don't recognize the number and am on the no call list.

No message left. Blocked number after reading comments by others.