# enableClickToDial() for Salesforce Classic
## Usage
Enables click-to-dial.
## Syntax
```javascript
sforce.interaction.cti.enableClickToDial( (optional) callback:function )
```
## Arguments
| Name | Type | Description |
| ---------- | -------- | ----------------------------------------------------------------- |
| `callback` | function | JavaScript method executed when the API method call is completed. |
## Sample Code–JavaScript
```javascript
```
## Response
This method is asynchronous. The response is returned in an object passed to a callback method. The response object contains the following fields.
| Name | Type | Description |
| -------- | ------- | --------------------------------------------------------------------------------------------------------------------------- |
| `result` | boolean | `true` if click-to-dial was enabled, `false` if click-to-dial wasn’t enabled. |
| `error` | string | If the API call was successful, this variable is undefined. If the API call failed, this variable returns an error message. |