When you install Microsoft Cordless Phone PC Phone System on Windows 2000, or Windows NT, you receive:
Microsoft Call Manager was not intended for this version of Windows.
The Microsoft Cordless Phone PC Phone System software is designed to run on Microsoft Windows 95 and Microsoft Windows 98 only.
When you upgrade to Windows 2000, the Microsoft Cordless Phone PC Phone System software is added to the Compatibility report, which indicates that the software does NOT run under Windows 2000.
You will notice that the shortcut has been removed from the Start menu.