You can download an executable file of the latest firmware for the Yeastar Products, and upload the file in the Web interface to upgrade. More details about upgrade can be found in Firmware Upgrade Guide below. For version details, please read the release notes.
S-Series VoIP PBX supports automatic upgrade. To upgrade automatically, check for new firmware in the Configuration Panel of PBX directly. And you can set how often to check for updates automatically and whether to automatically install.
TA Analog VoIP Gateways
TG VoIP GSM Gateways
MyPBX SOHO V1
MyPBX Standard V1