Homework Hotline provides free tutoring by phone for any Tennessee student. Call us Monday – Thursday from 4:00 – 8:00 pm. Call 615 298 6636 or Sonic toll free 888 868 5777. Homework Hotline provides one-on-one free tutoring by phone to Tennessee students and parents. With Homework Hotline, students tackle new concepts, learn to read, complete challenging assignments, and gain academic skills.