Opener: ring to open. Unknown Comelit

Hey,

I have had my opener for a while but can never get ring to open to work right. Unlock works fine.

My handset is Cometil - unknown

My solution so far has been to take a feed off a notification led. The issue with this is, the opener only detects once’s the LED has gone off which happens at the end of the call.

I thought if I wire the green cable into the call speaker that would work as it’s only active as the caller presses the call button.

Does anyone have any suggestions?