[def_true_false]

Paying for incoming texts and calls is not common outside the US. When you call or text someone, you pay the fee listed in your contract (not theirs). That is to say, the sane system exists and most countries use it.

Edit: Ironically, it seems that this can also be foot-gun: https://news.ycombinator.com/item?id=34847873

[Ankaios]

Preventing the fraud described in your edit is what I'm asking about. I'm wondering if anyone has set up lists to help avoid surprise prices for sending messages via SMS service APIs, not from texting someone from a phone.