Yes. You can add users that do not have an account on TrueConf Server to your meeting. Unregistered guests can join the meeting from their browsers or by downloading TrueConf temporary application. To enable guest access, you will need to purchase a Public web conferences/Webinar extension to your TrueConf Server license. We will also be happy to provide you with a 3-week trial period on your request, please contact our sales department to learn more.