I also got the call about check fraud associated with my name and social security number -- which I'm sure they are hoping I will provide for them. Don't call them back!

You need to take this to the higher authority's. For Extortion Scam Operations,  File reports with the FBI, your state attorney general and Department Of Justice,CFB,FTC & FCC..

http://www.nw3c.org/
http://www.ic3.gov/default.aspx
http://www.fbi.gov/
http://www.stopfraud.gov/report.html
https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
http://www.consumerfinance.gov/complaint/
http://www.fraud.org/

Also read up on the laws and your rights:

http://800notes.com/arts/Jb8EW-eDhQA/harassin ... ou-need-to-know
See Residents post here also:
http://800notes.com/forum/ta-34af6a034ba34b6/unending-collection-calls
Templates of Letters:
http://800notes.com/Phone.aspx/1-319-242-7350

http://www.ftc.gov/os/statutes/fdcpajump.shtm
http://www.consumerfinance.gov/askcfpb/search ...
http://www.consumer.ftc.gov/articles/pdf-0096-fair-credit-reporting-act.pdf
http://www.consumer.ftc.gov/articles/0149-debt-collection

And see:

http://800notes.com/forum/ta-944ec1426a8bcbb/ ... service-attacks
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http://www.clarkhoward.com/news/clark-howard/ ... r-phones/ndF4c/
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http://www.net-security.org/article.php?id=1828
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http://800notes.com/forum/ta-86217073a9c8dad/ ... 077595690349410
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http://www.consumer.ftc.gov/articles/0258-fake-debt-collectors
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http://www.deadiversion.usdoj.gov/pubs/pressreleases/extortion_scam.htm
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http://www.fdcpa.me/fake-process-server-injunction/
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http://800notes.com/forum/ta-9413b3202bc8b6c/ ... net%27s-tactics

I have received several calls at home and at work about fraudalent checks and a warrant.  This is a scam because I do not have such debts.  I have reported these calls to the BBB.

So received a call from a completely different phone number, 281-213-0784, but the UNBOUND 21917 is the same. Caller was a collection call on debt that is not mine but a relatives. I'm surprised they have my phone number in association with her. I did not answer as it's not a number I know. I have no intention of passing the information on as it's not any of business how my relative handles her money or who she owes. I'm not paying it and my name's not anything for her.

They told me there was a warrent for my arrest for writting bad checks in 2010.

A message was left on my answering machine last night from this number.  I played the message...it stated "This message is intended for XXXXX XXXXXXXX (who is a relative but does not live with me) to get a statement from you regarding the fraud charges that are about to be filed against you regarding the account in your name and social security number."

The message then left the same phone number to call back as on the caller ID.
The caller id read "Unbound 21917" with the phone number (646) 368-9078