Install the DoorBird app and follow the instruction for logging as administrator (scan QR code delivered from producer with device).
In administration page first choose SIP Calls and add at least one user:
Set the Name to any name - in this example CallMe - just remember it for following settings.
Set the SIP address in format nnn@CoreIpAddress:5060 where nnn is the SIP number which will be send to Core SIP server, CoreIpAddress is the core IP address, which you can find when you click in TapHome app on your location, 5060 is the SIP UDP port.
Return back and choose Schedule for door bell. From left pop-up menu choose SIP call and then select user defined in preview setting - in our example named CallMe. Select the times in which the ring will be active.
Return back and choose SIP Settings. Activate SIP and set SIP proxy to IP address of TapHome core (same as for previously defined user).
Choose Allowed SIP Users - and add at least one user with phone number 111 and IP address of TapHome core:
Return back until the application ask for saving the changes and choose Yes to store your changes.
For detailed information regarding used setting or any other setting please follow the producer User Manual https://www.doorbird.com/downloads/manual_app_en_de.pdf or the installation video https://www.doorbird.com/video_installation_d101_en.php