FirstClass® Client 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.
To download the FirstClass 11 Client
Step 1
To download the desired client, click the appropriate download link based on your operating system platform:
Win XP/Vista/7 
OS X
Step 2
Once the installation is complete you will need to configure the client to connect to your local FirstClass Server.
When the Login screen appears, simply enter your user ID and password and click Login.
(Note: You may obtain your Login ID and password from your principal)
(Note: You may obtain your Login ID and password from your principal)