I worked in an Austin, Texas area office. I received 10 missed call within 30 minutes. I finally picked up on one of the call. Caller insisted he was an employee of my company based in Panama. He even knew my name!!!! He insisted I called in complaining about quality of my Skype business line and want me to click option 2 to test out the line. I told him I suspected he was a scammer and hanged up.