The rapid little multi-note musical ditty that you hear when you press "redial" on a touch-tone phone.
I got a busy signal for three quarters of an hour before I finally got through to a live person in customer service --- here's a case where I am indeed glad dat my phone has auto-redial, but I got soooo tired of hearing dat 0%!$&#@ 11-note redial refrain over and over every half-minute!
by QuacksO October 30, 2018