Ring Intercom & STR Elektronik WF26

I am trying to solve a wiring problem between the Ring Intercom and the STR Elektronik WF 26.According to the manual it should be:**Ring Intercom STR Elektronik WF26**A1 red 3A2 brown 1A3 black 4A4 white n/aA5 gray 2A6 purple 5 I live in a multi-tenant house. The problem: I get a ring message on my smartphone not only if it is ringing at my door but also when someone is ringing at any neighbor. My STR WF26 responds properly, i.e. only when someone rings at my door. Any ideas???5 seems to be the appartment bell4 seems to be the front door bell2 and 3 seem to be the door opener1 and 2 seem to be the power supply