Hello.
We're developing an app with Flutter that receives VoIP calls. However, when the app is in the background or closed, the push notification arrives, but the call doesn't. It works perfectly when the app is open. We use Firebase, Flutter, and JANUS WebRTC. We need to know what type of permissions or actions we should consider so that the app opens when it receives a call. How can we resolve this issue? Thank you very much.