I keep getting these calls as well.  I don't answer if I don't recognize the number so it goes to voicemail, where of course it is a male voice on a recording stating that it is a law office(didn't name the law office) and it is an urgent matter.
First off, I went to school for the legal field and if a lawyers' firm is calling, they will leave the name of the firm and the contacts name.  I find that this is totally ridiculous.  I have to agree with the aforementioned, Send me proof of moneys owing and I will deal with it that way.  I give no pertinent information over the phone especially when I am not sure who it is.

I have been called by this number and am reluctant to call it back until I know where and who it came from.  Thank you for your help.
J. Rosss

Blatant misrepresentation...caller advised this was a "law Office" (no name mentioned)....in reality a credit card company. I CONSIDER THIS A FRAUDLENT ACT....as well as harassment.  Would like action taken against such malpractice.

I get the calls 5 to 6 times a day thank god they dont have cell phone #.When I answer my home phone I blow a whistle in the ear peice and then i laugh so hard ohhh hold on hear comes another call from these freakin sheet holes..... I do owe money 700.00 dollars from 10 years ago but how come they keep calling me GRRRR

Fake "law office", actually a collections / tele-spam department. Unfortunately for them, they've spammed a group of phone phreakers and are going to be incurring some unexpected communications costs due to their shady / deceptive behavior.