[IOS] How to Customize default call screen duration based on our app

[adsalihac]

Bug report

• [ ] I've checked the example to reproduce the issue.

• Reproduced on:

• [ ] Android

• [x] iOS

Description

• It's mismatching duration in both app and call duration. due to some delay in connection.

Steps to Reproduce

• locked iPhone
• call to iPhone.
• take calls from the iphone.
• here showing call kit UI .its duration is starting immediately. it doesn't depend on our app.

Versions

- Callkeep: 4.3.3
- React Native: 0.68.2
- IOS: 15 and above.
- Phone model:  iPhone 13

Logs

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