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# INStartCallCallCapabilityUnsupportedReason

Constants indicating the reason the app can’t support starting the call.

```
enum INStartCallCallCapabilityUnsupportedReason
```

## Topics

### Constants

[`INStartCallCallCapabilityUnsupportedReasonVideoCallUnsupported`](/documentation/Intents/INStartCallCallCapabilityUnsupportedReason/videoCallUnsupported)

The app doesn’t support video calls.

[`INStartCallCallCapabilityUnsupportedReasonMicrophoneNotAccessible`](/documentation/Intents/INStartCallCallCapabilityUnsupportedReason/microphoneNotAccessible)

The microphone isn’t accessible.

[`INStartCallCallCapabilityUnsupportedReasonCameraNotAccessible`](/documentation/Intents/INStartCallCallCapabilityUnsupportedReason/cameraNotAccessible)

The camera isn’t accessible.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Sendable`](/documentation/Swift/Sendable)

---

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