Hi,
I'm developing a VoIP application using CallKit.
The AVAudioSession activated by my application has been muted after emergency alert.
This issue happens on Google Duo / Facebook Messenger / Zoom also.
This issue is 100% reproducible running on iOS 13.3 ~ 13.5.1.
2 kinds of audio interruption "AVAudioSessionInterruptionTypeBegan" and "AVAudioSessionInterruptionTypeEnded" events placed at exact time.
And my application tries to activate audio session after "AVAudioSessionInterruptionTypeEnded" event, but it fails every time.
**** Error Logs ****
Error Domain=NSOSStatusErrorDomain Code=1701737535 "(null)" --> AVAudioSessionErrorCodeMissingEntitlement
Please let me know if you can give me some tip or hint to overcome this issue.
Best Regards.