Illinois Tobacco Quitline is a free resource for tobacco users who want to quit. The Illinois Tobacco Quitline is a FREE resource for tobacco users who want to quit for good. Our registered nurses, respiratory therapists, and certified tobacco-treatment counselors are on call 7 days a week, 7AM-11PM to answer all your tobacco-related questions and provide the support you need to break the habit. Habla español? We serve a diverse client base, with Spanish-speaking counselors and live translation services for more than 200 languages.