Caller ID said XXXXXXXXXXXXX TX. Person with Philippino accent claims to represent GE security systems, parent company of "your security system", and seeks to upgrade it. Talks while you are talking, so probably hears nothing you say. Told him I would report him for telephone solicitation and he argued that it was not a solicitation, it was an upgrade of security system. Would not stop talking, so I hung up and blocked the number.
I have had so many unsolicited phone calls that I bought an air horn from auto zone. Every time I get one of these calls I answer it and let off the air horn. They never call back. Works every time.