[asterisk-biz] Toll Free & 0+ per call compensation for Hospitelity install.

I was wondering if anyone can tell where to find out more information about 'Toll Free' and '0+' dialing per call compensation available to lodging and hospitality industry. I believe it's requires special dialout trunks at the establishment similar to payphone lines. I read about this in the past, but Google has failed to find more info.

 

Thanks, Bart