***

id: 3db7d867-1455-41d5-82d4-40d614bb9b50
title: CallRingback
slug: /dotnet/reference/calling/call-ringback
max-toc-depth: 3
----------------

[call-ringback-ringback-type]: /docs/server-sdk/v2/dotnet/reference/calling/call-ringback-type

# SignalWire.Relay.Calling.CallRingback

This object represents a call ringback that is being played.

## Constructor

The only constructor is the default constructor, properties should all be assigned by initializer or after construction.

**Parameters**

None

**Examples**

> Basic Example

```csharp
CallRingback ringbackAudio = new CallRingback
{
     Type = CallRingback.RingbackType.audio,
     Parameters = new CallRingback.AudioParams
     {
          URL = "http://path/to/audio/file"
     }
};

CallRingback ringbackRingtone = new CallRingback
{
     Type = CallRingback.RingbackType.ringtone,
     Parameters = new CallRingback.RingtoneParams
     {
         Name = "us",
         Duration = 30
     }
};

CallRingback ringbackSilence = new CallRingback
{
     Type = CallRingback.RingbackType.silence,
     Parameters = new CallRingback.SilenceParams
     {
         Duration = 30
     }
};

CallRingback ringbackTTS = new CallRingback
{
     Type = CallRingback.RingbackType.tts,
     Parameters = new CallRingback.TTSParams
     {
         Gender = "female",
         Language = "en",
         Text = "I'm a little teapot"
     }
};
```

## Properties

| Property     | Type                                                                                | Description                                                                                                                                                                           |
| ------------ | ----------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `Type`       | [`SignalWire.Relay.Calling.CallRingback.RingbackType`][call-ringback-ringback-type] | This is the type of the media.                                                                                                                                                        |
| `Parameters` | object                                                                              | This is the object that represents the parameters specific to the type, see [`SignalWire.Relay.Calling.CallRingback.RingbackType`][call-ringback-ringback-type] for more information. |

## Methods

## ParametersAs\<T>()

This is a helper method to convert the `Parameters` to the real type.

**Parameters**

| Parameter | Type | Required                                   | Description                                                                                                                                             |
| --------- | ---- | ------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `T`       | Type | <span class="required-arg">required</span> | This is the data type for the conversion, see [`SignalWire.Relay.Calling.CallRingback.RingbackType`][call-ringback-ringback-type] for more information. |

**Returns**

`T` - This is an instance of the data type resulting from the conversion, see [`SignalWire.Relay.Calling.CallRingback.RingbackType`][call-ringback-ringback-type] for more information.

**Examples**

```csharp
CallRingback.AudioParams audioParams = ringbackAudio.ParametersAs<CallRingback.AudioParams>();
CallRingback.RingtoneParams ringtoneParams = ringbackRingtone.ParametersAs<CallRingback.RingtoneParams>
CallRingback.SilenceParams silenceParams = ringbackSilence.ParametersAs<CallRingback.SilenceParams>();
CallRingback.TTSParams ttsParams = ringbackTTS.ParametersAs<CallRingback.TTSParams>();
```

## Events

None