To install a new firmware version on a base station and/or handset, please follow the instructions provided in the firmware update guide.
IMPORTANT NOTES:
after upgrading to version 450BXX the rollback to version 410Bxx or previous is not possible
after the base upgrade to 450B07 also handsets must be upgraded to the version 450B05
KNOWN ISSUES:
DECT-632: Wrong SIP request URI in Record-Route (strict routing) scenario. This issue is breaking compatibility with 3CX SBC (and other SBCs that require strict routing)
Update via http://dect.snom.com
Firmware update server address: http://dect.snom.com
Required version: 450
Required branch: 07 (for the base M700 and M300)
Required branch: 05 (for the handsets M25 M65 M85)