Citrix Redirection: disconnected

Hi everyone,

Citrix Redirection: disconnected is shown in OpenRainbow App on VDI. I found this :
https://help.openrainbow.com/hc/en-us/articles/23752823816850-CITRIX-Optimization-for-Rainbow-Desktop-application

and checked. Everything is set up as descripted - still no Redirection. Any suggestions would be much appreciated.
2nd Question is:
Is it possible to answer a call on windows app but have it directly on ear on mobile phone app(Android)?

Thanks in advance!

Br Sascha