DS1000/2000 Software Version 02.11.05 is available for download. This new software provides:
In DS2000, the Update Utility requires software version 02.11.00 or higher. You must use a PC Card to update prior DS2000 versions. Contact NEC America Customer Service at 800-365-1928 for more on the 02.11.05 PC Card update for DS2000.
Read the Update Utility Quick Reference for the specifics.
There are 3 basic steps to update your system software:

To install the Update Utility:
Do not run the installer directly from this screen.

To download DS Series System Software:
- Save the file in a convenient location on your hard disk.

To upload the new software into your phone system: