Call state condition doesn't make sense! please help

[rotkiv3451]

Hey everyone, I'm having some trouble with this app and I would really appreciate it if you could help me out for a second.
I'm trying to use automagic to turn on and off airplane mode every few minutes, as my phone has a problem that causes it to loose signal, but it gets recovered if rebooted or if airplane mode is enabled and then disabled.
The problem with that, is that it can become rather annoying to have it enable airplane mode while I'm in a call, which would immediately drop it, so I wanted the action to be executed only when I'm NOT on a phone call/

I've tried setting the Trigger to "Periodic Timer", then adding a Condition "Call State" (which has options for Off-hook, Idle and Ringing, which I've tried every combination of), and an Action "Set Airplane Mode: On" and "Set Airplane Mode: Off", but it still doesn't work properly. It enables airplane mode even when I'm on a call.

Could anyone please help me understand why this isn't working?

[MURTUMA]

Off-hook means that the call is answered and in progress. That should work.