FirstClass®enables you to experience the power of reliable communication, collaboration, conferencing, and calendaring capabilities in one easy-to-use solution.
The FirstClass® Client software provides a desktop application that is optimized for fast, streamlined access to the FirstClass® server.
Choose the version you want to install.
When prompted run the installer.
To download Client version 11 for Windows click here
To download Client version 11 for Mac OS X click here.To download Client version 8.1 for Mac OS 9 click here. Once the installation is complete click here.
A window may appear asking you to choose an application. Select FirstClass Client and then click OK.
A window may appear asking you to allow a program to open. Make sure it says FirstClass Client and then click Allow.
When the Login screen appears, simply enter your user ID and password and click Login.
Visit the FirstClass web site to download international clients.