NB-IoT Downlink Vodafone Germany

Hi everyone,

i’d like to send some data to my NB-IoT Node (currently that’s a NB-IoT Starerkit from Vodafone, but i also have a Sodaq NB-IoT shield which i’d like to try next).
As far as i understand the NB-IoT protocol as described in Rel. 13 3GPP also supports downlink.

Question: How do i send the node some data to use it as an actuator?

Maybe someone could point me in the right direction? Any hints are very welcome, thanks a lot!