This definitely sounds fishy. Did they say where the restraining order case was? If so , you might want to call the clerk to check up on it.
Service by robocall is no good. You must receive a form from the court saying that you are being sued.
Very suspicious. You could call the lawyer to inquire but I would nt give them any information about you. I agree that you would have to be personally served with a subpoena to be involved as a witness in an action.
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If it was an automated call, it is almost certainly a Scam. Any reputable Attorney/Company would send you a letter if you were involved in litigation. If the cannot spend 50 cents for postage, it is not important.
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