Wiring Help SKS GF30, GF40, GF46

Hi, i recently bought a Ring Intercom which i would like to install. My Brand/Model is not represented in the App, since its pretty old. Support says, its not compatible but i figured i asked here first, before sending it back.These are the Informations i could find:https://www.yumpu.com/de/document/read/901380/sks-gf-46-bachmann-neukomm-aghttps://www.yumpu.com/xx/document/read/933858/download-schema-sksgv33I hope someone can help and tell me how it should be wired, if at all.Thanks in regard.