On a Sunday morning I used to lie in with the radio on, sleeping on and off.

There was one song around 1999 that included the sound and also had my ring tone.

It was a very confusing time.

Found it: https://youtu.be/y8ClVMzt9Dw

[edit: added link]

I heard it just a couple years ago, when I used a 2G phone. 3G and 4G don’t have that fault.

Fault or feature? Was nice to get some warning your phone was about to ring