I think you are making it harder for yourself wanting to use different numbers for different callers.

I have had a few prank calls. 

I would ask about individual private lenders and how to find out if they're legit or pranks

Tell different callers different prices and see how they react.  

Can I just use their caller ID# to call them back or is that considered solicitation?

At 10:03, I got my first lead - a guy needing to sell about 20 houses.So far, since putting out the signs yesterday, I've gotten one text (the guy with 20 houses) & five calls.Out of six responses, two are no deals: 1) caller wanted to sell a 963sqft house but they're building another house right behind it on the same land/parcel & 2). caller has a mobile home he wants to get rid of but buyer will still have to pay lot rent.The caller with the mobile home is a contractor though.

The letters got me more people who were just curious, as opposed to the pc callers who "knew what was up" so to speak. 

No, I really don't need it, I already have everything I need, just give it to someone else.This goes on for a few minutes, they caller doesn't have a reply and dad hangs up. 30 minutes later the guy calls back.He says.....sir, you have to take the money, your name is already on the check! 

Personally I started as a cold caller but that was when I was 16 and did not have a family to take care of.

. ;-)Of course, what business do you call that dosent let the caller  know "They are being recorded for quality and training purpose?"