React-native-callkeep background call issue on iOS

I've been facing an issue with React-native-callkeep, specifically on iOS. I've tried some troubleshooting steps but the problem persists.

Primary Goal:
The primary issue I'm facing is that the call functionality does not work when the app is running in the background.

Specific Requirements:
- The issue occurs in the background and terminated state on iOS and needs to be fixed.

I'm not entirely sure about the versions of React Native and React-native-callkeep being used in my project.

Ideal Freelancer:
- Experience with React Native and React-native-callkeep
- Proven record in troubleshooting and fixing bugs in iOS app development, particularly in the background and terminated state
- Good communication skills for discussing the issue and potential solutions.