Is it though? Like it might be valuable to you, but i doubt its valuable to anyone else in a phone call situation and both parties need to find value to make a sale.

Like if you are interested in the convo then you should be paying the other person as you are getting value from the convo.

What's the situation where you don't care about the convo but for the right price you could care, and the other party also thinks that price is reasonable? Like maybe if someone is trying to recruit you i guess, but the situations where that is true seem very few and far between (and we already have a system for that, where traditionally someone offers to buy you a meal in exchange for listening)