Digi XBee-PRO to extend the signal of an OSRAM smart plug

I just bought a DIGI XBEE-PRO ZIGBEE WALL ROUTER with you and tried it out to extend the range of some General Purpose Zigbee devices like an OSRAM smart plug or a Xiaomi presence detector.

This did not work, just out of the box.

Is there a Special configuration (additional device) that I need to get this activated? Do I need to also buy the USB XStick to be able to configure the Wall router in the right way?