Anyone who is interested, I'd like to look into this, so anyone in that can find a Payfone, try this out and see what you get, and we can compare responses. The only non-COCOT payfone is a good distance from here, but perhaps tomorrow I'll go check this out.
AT&T has always been a strange fone company. Its possible you may have gotten a new operator and he/she might not have known that these options may have existed.
BTW, I noticed your memories comment about the Third Person Billing Option, is it safe to say you've either been into Phreaking for awhile or just very old?
"Remember how much fun you had shooting spitwads at the teacher in seventh grade? Imagine applying that kind of attitude to actually fucking with Mitsubishi!"
- Jello Biafra