That sounds alarming, but from reading more about it, it doesn't seem like it would be relevant to this, although in the long run it's certainly possible that calling from a payphone would never actually reach someone directly, being shunted to the "you probably don't care about this" purgatory voicemail.

https://www.mintz.com/insights-center/viewpoints/2776/2025-1...

But that would seem true today as well.

Try instead https://docs.fcc.gov/public/attachments/DOC-420711A1.pdf