Three second rule

After getting numerous phone calls that require that I say hello at least several times before a machine comes on and pre-recorded message lets me know about the latest trip I might win or loan I could apply for or whatever I have made a decision. From now on when I pick up the phone I will say hello. Quite clearly. I will slowly count to three. If I hear nothing by then I will hang up. I don't see the point of having to say hello more than once. If there's a person there that wants to talk they will usually respond within the three seconds. If they don't I will assume it's a wrong number or an annoying telemarketing message. Oh and for the live telemarketers who call up and act like we're friends from way back so you can sell me some magazine subscriptions I don't need I say no once and hang up. Makes life so much simpler.