# Callout Request

Makes a call out to a phone number. The types of callouts currently supported are conference callouts, text-to-speech callouts, and custom callouts. The custom callout is the most flexible, but text-to-speech and conference callouts are more convenient.

Endpoint: POST /calling/v1/callouts
Version: 1.0.1
Security: Basic, Signed

## Response 200 fields (application/json):

  - `callId` (string)
    The returned call identifier.
    Example: "adf92089-d9e8-4f14-a377-1e975f588fe4"