The evaluation period includes the following periods:
- Grace period: The period of time that a server that has Terminal Services enabled allows unlimited connections without communicating with a license server. The grace period begins when Terminal Services is enabled and ends after either 120 days or when a license server is discovered, whichever occurs first. (The grace period is 90 days for Windows 2000 Terminal Services.) If you deploy the terminal server and a license server on the same day, there is no grace period.
- Temporary tokens: License tokens are issued to clients that are connecting to terminal servers in Per Device mode when there are no Terminal Services Client Access License (CAL) tokens available. Temporary tokens are valid for 90 days. There is no limit to the number of temporary tokens a license server issues, but a single device is only issued a temporary token one time. After that token expires, the device can only connect if a Terminal Services CAL token is available.