Caller called my father in another state claiming he was from a law office and had to discuss a legal contract I had entered. Said I had given his number out as contact information. Asked for my number and my father said no he'd call me. I have never given his number out. Within 5 minutes of me being on the phone with my father he had called my unlisted unpublished number......sounds like a scam.....other then buying my home I've never entered into any contract. Identified himself as Phil Larson from JNO and Associates.

He is doing the same to me!!  Now he is harrassing me at work!

Legit collectors per section 809 of the FDCPA http://www.ftc.gov/bcp/edu/pubs/consumer/credit/cre27.pdf *must* tell you at initial contact, or send you paperwork within 5 days of initial contact, the following:
1. $amount of debt,
2. name of the current creditor (which may differ from the original creditor who might have sold your debt),
3. a statement that that debt will be assumed to be valid unless you dispute in writing within 30 days,
4. a statement that that if you do dispute in writing within 30 days, the collector must mail you written verification of the debt,
5. a statement that if you ask the collector in writing within 30 days, the collector must send you the name and address of the original creditor if it's different from the current creditor.
If you don't get the 5 disclosures, orally or in writing (you do not have to ask for them, the FDCPA requires collectors to provide them), treat the collector like you would any SCAMMER.
Has the statute of limitations for your state http://www.fair-debt-collection.com/SOL-by-State.html expired on your debt? If expired, don't pay.
Collectors generally have to be licensed by your state to practise (collect debt) in your state and you can find out by calling your state Attorney Generals Office. Ask if a license is required and does this collector have one. If not licensed, don't pay and file a complaint.
Be aware that scammers are using bought/hacked/phished loan application data to extort payments for fictitious debts from victims and victims' families and friends.
The FBI warns about payday loan extortion scams here http://www.fbi.gov/news/pressrel/press-releases/paydayloanscam_120710 
The BBB has issued several alerts on this scam, just google "bbb.org alert phony debt collector"
Report to the Internet Crime Complaint Center http://www.ic3.gov/complaint/default.aspx , the Federal Communications Commission http://esupport.fcc.gov/complaints.htm , the Federal Trade Commission https://www.ftccomplaintassistant.gov/ and your state AG, as appropriate.

Same Guy called me - I told him I was not interested and he continued to talk then I hung up.  He called back - I did not answer - he left a message and said he was contacting the BBB to report me!!  I guess for hanging up!!

He called me this past Monday, and was very nice. Hi was a lot nicer then some of the other calls that I get. I am trying to buy a house, and needed to get my bill taken care of, but still with this economy money is VERY tight. I was able to work a payment plan out over 3 months with him, and even when I could not pay all at once, I still got a very good deal.

I know there are some bad debt collectors out there, but this guy was great. We all need to realize they are doing their job as we are doing ours. If you are rude they have a right to be rude. If he was rude, I would have been rude. The best thing is be honest, and realize we stopped paying the bill we owe, and it does not go away, and most of all, I/we still owe the bill. If you are honest, Mr. Larson, and I am sure others' are more than happy to work with you.