> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lacy.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Make a phone call

> Make a phone call

This endpoint allows you to make a phone call.

### Request body

**phone\_number** `string` *required*

The phone number of the customer in E.164 format (e.g. +1234567890)

**assistant\_id** `integer` *required*

The ID of the assistant to make the call with

**variables** `object`

Custom variables to pass to the call. You can include **any variables that are defined on your assistant** (see [Call variables](https://docs.lacy.ai/ai-assistants/settings/prompt-and-tools.md#call-variables)). The examples below are just for illustration — use your own variable names as configured in the assistant settings.

**Example variables (add your own)**

**customer\_name** `string`

e.g. the name of the customer

**email** `string`

e.g. the email of the customer

### Response

**message** `string` (default: Call initiated successfully)

The message of the response

```json 200 Response theme={null}
{
  "message": "Call initiated successfully",
  "data": {}
}
```


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.