# setSoftphoneHeight() for Salesforce Classic

## Usage

Sets the softphone height in pixels.

:::note
If this method is used in a Salesforce console where multi-monitor components is turned on, an error will be returned because resizing multi-monitor component is not allowed.
:::

## Syntax

```javascript
sforce.interaction.cti.setSoftphoneHeight(height:number, (optional) callback:function)
```

## Arguments

| Name       | Type     | Description                                                                               |
| ---------- | -------- | ----------------------------------------------------------------------------------------- |
| `height`   | number   | Softphone height in pixels. The height should be a number that’s equal or greater than 0. |
| `callback` | function | JavaScript method executed when the API method call is completed.                         |

## Sample Code–JavaScript

```javascript
<html>
<head>
   <script type="text/javascript" src="http://domain:port/support/api/25.0/interaction.js"></script>
   <script type="text/javascript">
       var callback = function (response) {
           if (response.result) {
              alert('Height was set successfully.');
           }
           else {
              alert('Height was not set successfully.');
           }
        };
</script>
</head>
<body>
       <button onclick="sforce.interaction.cti.setSoftphoneHeight(200, callback);">
       set softphone height to 200px
       </button>
</body>
</html>
```

## Response

| Name     | Type    | Description                                                                                                                 |
| -------- | ------- | --------------------------------------------------------------------------------------------------------------------------- |
| `result` | boolean | `true` if the height was set successfully, `false` if setting the height wasn’t successful.                                 |
| `error`  | string  | If the API call was successful, this variable is undefined. If the API call failed, this variable returns an error message. |