Caller didn’t leave a message on my machine and the caller id said “VOIP CALL” which probably means scammer/telemarketer since every legitimate business I know leaves a message. So I ran 3 reverse traces using 3 types of traces and all were completely blocked. No person or business name, no general location(City, County, State, Country etc.) and no service providers showed up, however the area code is for the Dallas, Texas area. A legitimate business would never hide their identity and location by blocking a trace. This is the worse kind of scammer that is probably operating from a foreign country that is either spoofing dead phone numbers and/or using a Voip system while phishing for personal information and running a scam(s) (i.e. Home Security Systems etc.). This is an extremely high tech scammer so beware. DO NOT ANSWER AND DO NOT CALL BACK FOR ANY REASON. Block and report to the proper authorities.