Concrete5 is an open source content management system. It was designed with the goal of enabling the creation of all kinds of websites while remaining easy to use for all team members. To serve the different kinds of websites effectively, the CMS includes many built-in features, such as role management, SEO customization and control, or blog comment management. In addition, Concrete5 can be extended with the help of various addons. An active community is part of the process of keeping the CMS up-to-date and is developing new features constantly.
With the sms77 addon you can now also send voice messages and SMS in Concrete5.