As years went by, chat line services evolved. Today, chat line services are used 80% for casual conversations, 10% for depression therapy, and 10% for language exchange. In France, chat lines were used during WWII as a method of communication between soldiers and their families.
The first official chat line was introduced in 1973 by David R. Woolley. In the context of war, this type of communication was called “talkee,” a term soldiers used for what would later become known as a chat line.