We regularly drank this stuff! It has bi carb soda in it hence the fizz and salty taste! Not good for you if you have high blood pressure! But what did we know back then, we just liked the fizz and bubbles up our nose 😅.
When I had a landline I would pick up the phone and not say anything, they'd hang up pretty quickly. You can also speak in a made up language, they don't like that either!