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

# Initiate Outbound Call

> Dispatches the agent worker to place an outbound call; the worker dials.



## OpenAPI

````yaml /openapi.json post /api/telephony/calls/initiate
openapi: 3.1.0
info:
  description: >-
    Build and run voice assistants: configure an assistant, give it tools,
    knowledge and playbooks, place and read calls, and manage contacts,
    campaigns and analytics.


    Authenticate every request with an API key as a bearer token. See the API
    introduction for the response envelope, pagination and error shapes.
  title: Qall API
  version: 0.1.0
servers:
  - description: Production
    url: https://qall.io
security: []
paths:
  /api/telephony/calls/initiate:
    post:
      tags:
        - telephony
      summary: Initiate Outbound Call
      description: Dispatches the agent worker to place an outbound call; the worker dials.
      operationId: initiate_outbound_call_api_telephony_calls_initiate_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InitiateCallRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InitiateCallResponse'
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
        - HTTPBearer: []
components:
  schemas:
    InitiateCallRequest:
      description: Request model for initiating an outbound call.
      properties:
        from_phone_number:
          anyOf:
            - type: string
            - type: 'null'
          title: From Phone Number
        to_phone_number:
          title: To Phone Number
          type: string
        variables:
          additionalProperties: true
          title: Variables
          type: object
        welcome_message:
          anyOf:
            - type: string
            - type: 'null'
          title: Welcome Message
      required:
        - to_phone_number
      title: InitiateCallRequest
      type: object
    InitiateCallResponse:
      description: Response model for initiating an outbound call.
      properties:
        call_sid:
          title: Call Sid
          type: string
        message:
          title: Message
          type: string
        provider_call_sid:
          anyOf:
            - type: string
            - type: 'null'
          title: Provider Call Sid
        success:
          title: Success
          type: boolean
      required:
        - success
        - message
        - call_sid
      title: InitiateCallResponse
      type: object
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          title: Detail
          type: array
      title: HTTPValidationError
      type: object
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          title: Location
          type: array
        msg:
          title: Message
          type: string
        type:
          title: Error Type
          type: string
      required:
        - loc
        - msg
        - type
      title: ValidationError
      type: object
  securitySchemes:
    HTTPBearer:
      scheme: bearer
      type: http

````

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