That was my first thought. In NZ, 911 has redirected to our emergency number 111 for about 25 years now, but before that, 911 led to a recorded message telling you to hang up and dial 111. I found this out by getting there by accident by pressing the hang-up button a lot of times quickly (for curiosity reasons). In NZ pulse coding for 911 is 1 pulse, then 9 pulses, then 9 again (our rotary dials going the other way is why we use an emergency number starting with 1). I probably pressed the hang-up button once, then decided to press it a bunch more times.
