Tweaking the 'Upgrade Firmware' List with Custom Firmware

[Leo_B]

Gentlemen,

For some reason I need to deploy 'legacy' Yealink T58A firmware on several devices, and the best way of doing this would be to select the one from the Upgrade Firmware pop-up list. How I am supposed to add the custom firmware to the mentioned list? Is it possible in version 16.0.xxxx?

3CX Version: Enterprise Annual 16.0.1078
Server OS: Debian 9 v16.0.655
Is the 3CX Server Hosted: no
IP Phone Make/Model/Firmware: Yealink T58A v58.85.0.5
Provisioning Method: SBC
Trunk Provider: Vitelity
Has the Firewall Checker passed: YES
Are custom Phone Templates being used: NO

 

[cobaltit]

Custom template

 

[Leo_B]

Custom template

Thank you for the hint.

 

[Leo_B]

Thank you for the hint.

While we are at it... how I am supposed to setup the altnerative firmware deployment via custom template? Just tweak firmware.url option as well as firmwareParams?