Leonard recorded her own voice informing callers of the contents of the next issue of High Society magazine before its publication.
Later she recorded others such as Annie Sprinkle "talking sexy".
Typically the telephone companies would bill callers to chat lines and then remit 45% of the money collected to chat line operators.
The telephone companies placed the chat line charges on a customer's local phone bill.
This is the world portrayed in Spike Lee's movie about phone sex, Girl 6.