According to 7965G user guide, 7914 modules are compatible with new 79x5 phones.
I've tried that and 7914 buttons stay red. The 7965 is well configured with a module type of 7914 and a template with BLF on the module buttons.
The phone version is 8.5.3S and 7914 firwmare is S00105000300.
On the phone Settings -> Status -> Module : the module is not seen.
Connecting the same module on a 7961G same configuration works perfectly.
Is 7914 really compatible with 7965 ?
Thanks for your help