Verizon provided billing services to calls made in Massachusetts, Rhode Island and Maine.
If a customer disputed a charge, the telephone company would usually “forgive” the charge but block the caller from calling any other chat lines.
By 2007 only Verizon, Sprint and AT&T remained in the chat line business in the U. By 2007 Verizon and MCI had merged and only a few chat line companies remained active as a result.
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.
Once means of transmitting payment were developed, phone sex turned into primarily a commercial activity, with customers (overwhelmingly male) and sellers (overwhelmingly female).