called then hung up when phone was answered

The guy called asking for "Dennis". I said Dennis isn't here. He then asked for "the man or lady of the house" or something like that. That was really strange, considering this is a business number. So I stated clearly that IF he was calling for a valid purpose, then he'd know the NAME of the person he wanted. Bizarrely, he immediately asked for Dennis again. So I just hung up.

Caller ID from 201-283-9757 says CHARITY. He asked for Annie, then the man of the house. I thought they were putting a stop to all these calls???

Caller ID says "Kearny    NJ". Rang 3 times, then hung up before answering machine picked up. Blocked.

Missed call from this group.  No message left.  Called the number back and it is says it was from a "fundraising benefit group".  They were calling on behalf of one of several charity organizations.  

No way to automatically remove your number from their list.  It asks you to enter in your phone number and then one of their representatives would call you back.  Whatever ........