When someone push the bell button, a sip call is initiated by the GDS3710 to the internal phone(s).
Sometimes, it happens that someone just open the door instead of picking up the phone. In this case, the internal phone(s) continue to ring which is unnecessary and disturbing.
I wired the door sensor (open/close) in the IN2 sensor of my Gds3710. So it knows when the door is opened. Would it be possible that in this situation (doorbell call initiated and then door open is detected), the call initiated by the GDS3710 is cancelled ? That would be a really interesting feature.