I got the same message today the Caller ID said "Unknown". Foreigner threatening me I will be reporting this call to my state attorney general if they call back.
G. Lea
 Dec 21st, 2012
receive a call today from someone saying to call back and he needs to hear from me or my lawyer or will take action. Sounded very angry and foreign.
 Dec 12th, 2012
Just received a call from this angry man threaten that I need to call him or my lawyer. After being angry said have a bless day to come. Called back keep asking my name and I told him I wanted to speak with his supervisor no response on that. Will report him!!!
C. Ross
 Dec 11th, 2012
He did not identify the firm he was calling from. Stated his name was Anthony Cooper. He threatened that if he did not hear from me or my lawyer today (it is now 4:40PM) that he would "unleash" on me. Quite scarey. Stated his return number was 202-379-1947. Quite an angry man! Spoke firmly and slowly. Sounded like he was a foreigner of some sort.
C. Woolley
 Dec 10th, 2012