Your callers are Criminals. The Do Not Call Registry is just a "List" and not a law enforcement agency for criminals. Report your complaints to the appropriate government Law enforcement authority. FCC, FBI, etc.
Indian Accent, left a message saying to return his call immediately or better yet have my attorney call. When I tried to return the call the mailbox was not accepting new messages.
Man with accent called -- said his name was Robert Steed --asked for my wife by name -- asked him what he wanted - he wouldn't tell me so I hung up- called back again -- did not answer - hung up did not leave message