Public Forum

Public Forum

Is it possible for me to have a forum which is fully public? Presently it appears that someone should have access to Zoho to access a forum. I want to create a forum for one of the trainings our company is delivering. I would like anyone of the course takers to post their doubts in the forum by just visiting the url and use it as a discussion board. My course takers will not have access to Zoho. Is this possible? Can anyone point me in the right direction please?