a disgruntled desperate person who you are already speaking with on the phone is also far more likely to say something off the cuff that doesn't actually mean anything. i understand though that where you live there is no such thing as free speech and the line may be a little hard to grasp. a threat would sound something like "i'm on my way to your office at 1234 x street with my gun. when i get there i am going to shoot you dead, [your name.]"
United States