AVAudioApplication.MicrophoneInjectionPermission.undetermined The app hasn’t requested a person’s permission to add audio to calls. Declarationcase undetermined See AlsoPermissionsAVAudioApplication.MicrophoneInjectionPermission.serviceDisabledAVAudioApplication.MicrophoneInjectionPermission.grantedAVAudioApplication.MicrophoneInjectionPermission.denied