Since Firmware version 8.7.5.17 the VPN feature is no longer shipped with the default firmware due to security considerations. If you want to enable the VPN feature you have to install the VPN patch, following the download links. Important notes about the VPN feature: - a network recovery will remove the VPN feature - starting with fw version 8.9.3.20 the VPN patch version must be aligned with the phone firmware - if the VPN patch is installed when you update the phone updating the VPN patch is not needed To download the VPN patch, please refer to the firmware installation guide on our public wiki: http://wiki.snom.com/Firmware