Connecting Came BPT AS C/251 to Ring Intercom - Ring Intercom - Ring Community

Good morning, I would need help on how to connect Ring Intercom to my Came BPT AS C/251 intercom. I have contacted email support but they have not yet been able to tell me how to connect the cables to my intercom, I only got a positive response in terms of compatibility. On the official guides my intercom is not listed. In my intercom there are 4 incoming cables and they connect to numbers 6-7-8-9 Thank you for your help!

Does anyone understand this intercom wiring (To be used with Ring intercom) : r/homeautomation

Ring Intercom not working with Came BPT YC/300A - Ring Intercom - Ring Community

Does anyone understand this intercom wiring (To be used with Ring intercom) : r/homeautomation

BPT YC/251 - Cuffie universali per sostituire il vecchio interfono : : Fai da te

Oct. 2, 2019 by newstribune3 - Issuu

Connecting Came BPT AS C/251 to Ring Intercom - Ring Intercom - Ring Community

Ring Intercom not working with Came BPT YC/300A - Ring Intercom - Ring Community

Intercoms R Us LTD - Handset Finder

Ring Intercom not working - Ring Intercom - Ring Community