1. UCM6202 and UCM6204 now support up to 50 and 75 concurrent calls respectively.
2. Backup your data including configuration before firmware upgrade is a MUST.
3. For UCM6xxx on 1.0.18.x, please upgrade to 1.0.19.x directly.
4. For UCM6xxx on firmware earlier than 1.0.18.x, please upgrade to 1.0.18.x first, then upgrade to 1.0.19.x. To upgrade to 1.0.18.x, please check 1.0.18.x release notes “Important Upgrading Note” section and follow the instructions.
5. It is recommended to upgrade UCM to latest firmware for product lifespan and security improvements.
Download UCM62xx Firmware Files:
Previous UCM62xx Firmware:
UCM62xx 18.104.22.168: Firmware File
UCM62xx 22.214.171.124: Firmware File
UCM62xx 126.96.36.199: Firmware File