Thank you for your suggestions. I am trying to migrate to total telephone control by Automagic (together with my smart house) so just hardcore setting different ringtones on different SIM-cards is currently not an option.
I will try to reach out to Martin to see if he can implement this variable in one of his modules - maybe you can support me with an additional message to him?

One thing that really kills me is displayed on the newly attached photos below. The android system very well recognizes which SIM that has been targeted, and displays it as an icon up on the top left notification pane (handset with a number 1 or 2 for the corresponding SIM).
My issue is - this icon is somehow (and extremely unfortunately) INVISIBLE to Automagic. No matter how I look for it, it never shows up in any debug dialogues - even though the trigger (incoming call) activates... ...definitively by another criteria than notification recognition. How can I read this extra info and utilise it in my flows?
It feels like I can touch the solution... ...and yet it is still out of reach...
Thankful for any and all help I can get in this matter! Cheers / B-O