Every quarter a new software for all DECT products is released. We always recommend that your system is always updated to the newest release. The software is available for download via the product pages on the support portal. You can easily update you DECT handsets to newest release (except the 74-Handset Series) by accessing our Web updater: http://downloads.spectralink.com/software/dect/JavaLoader/ you need a USB enabled desk charger for updating the handsets firmware. For more information about software releases you can subscribe to Spectralink’s technical newsletter TechPoint.