Verizon provided billing services to calls made in Massachusetts, Rhode Island and Maine.
Leonard convinced magazine owner Carl Ruderman to purchase more of these numbers and the business began to be successful using the magazine to promote the service.
Leonard herself was surprised at the success of these numbers.
The provider provided (say) 10 minutes of service, but got to keep all of the money (say 20 minutes).
When the Internet got relatively mature, sale of any sexual service not involving a minor could be made to anyone not a minor.
If a customer disputed a charge, the telephone company would usually “forgive” the charge but block the caller from calling any other chat lines.