As I was cleaning up data on my cellphone tonight, I found a video I had recorded about a year ago. I was working -as a side-contract- on a VoIP telephony / PA / bell system for schools. At the lab I was working, I had about 10 phones, 6 speakers (for the hallways), and an intercom (can’t remember why). I was testing the bell system, which was supposed to play a sound on all those devices, from a shell script (actually python, IIRC) that would connect to the asterisk server. The first “beep” is made by all the phones, it’s an alert saying an announce is coming
I record one of those tests, and even though it was recorded by my crappy but oh-so-reliable BenQ phone. The music playing is Radiohead’s All I Need.