How to query the terminal Server Licensing grace period

Hi,everyone

   A few day ago, i installed a windows 2K8 R2 as a terminal server ,and specify itself as a terminal licensing server ,but without install any CALs.So erevytime i logged into the terminal , system will pop up a message said that the terminal server's grace period will expired at xxx days. but due to someone unchecked the message , systme can't pop up any message talked about the grace period.

  So can anyone tell me where can i find the remaining grace period  ??