chat line
From Longman Dictionary of Contemporary EnglishRelated topics: Telephone, telegraphchat lineˈchat line noun [countable] TCTa telephone service that people call to talk to other people who have called the same serviceExamples from the Corpuschat line• Or a chat line, except you don't get done for the phone bills.• His new book, Vox, is the story of two strangers who meet on a telephone chat line.