***

id: 3c52e123-6a2b-4192-81a5-470f347a1c40
title: FaxAction
slug: /dotnet/reference/calling/actions/fax
description: The FaxAction is used to send or receive faxes.
max-toc-depth: 3
----------------

[call-1]: /docs/server-sdk/v2/dotnet/reference/calling/call#faxsend

[call]: /docs/server-sdk/v2/dotnet/reference/calling/call#faxsendasync

[signalwire-relay-calling-faxresult]: /docs/server-sdk/v2/dotnet/reference/calling/results/fax

[signalwire-relay-calling-sendfaxpayload]: /docs/server-sdk/v2/dotnet/reference/calling/send-fax-payload

[signalwire-relay-calling-stopresult]: /docs/server-sdk/v2/dotnet/reference/calling/results/stop

[fax-receive-async]: /docs/server-sdk/v2/dotnet/reference/calling/call#faxreceiveasync

# SignalWire.Relay.Calling.FaxAction

This object returned from [`FaxReceiveAsync`][fax-receive-async] and [`FaxSendAsync`][call] methods that represents a fax operation that is currently active on a call.

## Properties

| Property    | Type                                                                                 | Description                                                                                                           |
| ----------- | ------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------- |
| `ControlID` | string                                                                               | The identifier used to control the operation.                                                                         |
| `Result`    | [`SignalWire.Relay.Calling.FaxResult`][signalwire-relay-calling-faxresult]           | Final result of the fax operation.                                                                                    |
| `Completed` | bool                                                                                 | Whether the fax operation has completed.                                                                              |
| `Payload`   | [`SignalWire.Relay.Calling.SendFaxPayload`][signalwire-relay-calling-sendfaxpayload] | Payload sent to [`FaxSend`][call-1] to perform a fax operation. This field will be `null` for receive fax operations. |

## Methods

### Stop

Stop the action immediately.

**Parameters**

*None*

**Returns**

[`SignalWire.Relay.Calling.StopResult`][signalwire-relay-calling-stopresult] - The result object to interact with.

**Examples**

> Start listening for faxes and stop it after 5 seconds.

```csharp
FaxAction actionFax = call.FaxReceiveAsync();

Thread.Sleep(5000);

StopResult resultStop = actionFax.Stop();
```