When you call back, they say they are ERC out of Jacksonville, FL . I told them I wouldn't talk to them until they called back from their actual phone number and not a robo dialer.
Ignore them. They're bogus & time barred debt scroungers "Extraordinaire". I know them well. If you ever do talk to them, tell them that Gunnar says "Hello". If you have children, don't have the 'phone set on "Speaker". Your caller is going to be using some "colorful" language...
Be Safe. Be Aware.
Gunnar