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# MediaOptions

> Options controlling which media tracks to send and receive.

Options controlling which media tracks to send and receive.

## **Extended by**

* [`DialOptions`](/docs/browser-sdk/v4/reference/interfaces/dial-options)
* [`CallOptions`](/docs/browser-sdk/v4/reference/interfaces/call-options)

## **Properties**

**`audio`** `boolean`

Enable audio input. Defaults to `true` when not specified.

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**`fallbackToReceiveOnly`** `boolean` — default: true

When local media can't be acquired (permission denied or device unavailable), continue the call in receive-only mode instead of failing. Ignored when the call is not set to receive any media — with nothing to receive there is no call left to fall back to, so the failure is fatal.

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**`inputAudioDeviceConstraints`** `MediaTrackConstraints`

Custom constraints for the audio input track. See [`MediaTrackConstraints`](https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints).

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**`inputAudioStream`** `MediaStream`

Pre-existing audio stream to use instead of `getUserMedia`. See [`MediaStream`](https://developer.mozilla.org/en-US/docs/Web/API/MediaStream).

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**`inputVideoDeviceConstraints`** `MediaTrackConstraints`

Custom constraints for the video input track. See [`MediaTrackConstraints`](https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints).

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**`inputVideoStream`** `MediaStream`

Pre-existing video stream to use instead of `getUserMedia`. See [`MediaStream`](https://developer.mozilla.org/en-US/docs/Web/API/MediaStream).

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**`receiveAudio`** `boolean`

Whether to receive remote audio.

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**`receiveVideo`** `boolean`

Whether to receive remote video.

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**`video`** `boolean`

Enable video input. Defaults to `false` when not specified.

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> Options controlling which media tracks to send and receive.