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

# Outbound



## OpenAPI

````yaml /api-reference/openapi.json post /v1/voice/outbound
openapi: 3.1.0
info:
  title: Feather API
  description: >-
    Unified customer experience platform API. Manages identity, conversations,
    memory, agents, procedures, policies, model routing, knowledge bases,
    integrations, and runtime execution.
  version: 1.21.0
servers:
  - url: https://api-sandbox.featherhq.com
    description: Sandbox
  - url: http://localhost:8000
    description: Local dev
security: []
paths:
  /v1/voice/outbound:
    post:
      tags:
        - voice
      summary: Outbound
      operationId: outbound_v1_voice_outbound_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OutboundRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OutboundResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - APIKeyHeader: []
components:
  schemas:
    OutboundRequest:
      properties:
        from_phone_number_id:
          type: string
          format: uuid
          title: From Phone Number Id
          description: >-
            Org-scoped phone number id to dial FROM. Must have an outbound_call
            agent attached so a SIP outbound trunk has been provisioned.
        to_phone_number:
          type: string
          pattern: ^\+[1-9]\d{6,14}$
          title: To Phone Number
          description: E.164 phone number to dial, e.g. +15555550123
        agent_id:
          anyOf:
            - type: string
              format: uuid
            - type: 'null'
          title: Agent Id
          description: >-
            Optional: dial AS this specific agent. Must already be attached to
            the from-number as an outbound_call binding. Provide this XOR
            `team_id`; omit both to let the backend pick a bound dialer at
            random (load-balanced across the fleet).
        team_id:
          anyOf:
            - type: string
              format: uuid
            - type: 'null'
          title: Team Id
          description: >-
            Optional: dial AS this specific team (its default member answers).
            Must already be attached to the from-number as an outbound_call
            binding. Provide this XOR `agent_id`; omit both for random pick.
        context_variables:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Context Variables
          description: >-
            Optional seed values for the bound agent's typed context variables,
            applied once at session bootstrap. Each key must be a variable
            declared on the agent or one of its bound workflows; values are
            coerced against the variable's type/enum. An unknown key or an
            uncoercible value is rejected (422). System vars are frozen on-file;
            derived seeds satisfy the collection gate. Only honored for
            single-agent bindings in v1 (ignored for team-bound dialers).
      type: object
      required:
        - from_phone_number_id
        - to_phone_number
      title: OutboundRequest
    OutboundResponse:
      properties:
        room_name:
          type: string
          title: Room Name
        dispatch_id:
          type: string
          title: Dispatch Id
        agent_name:
          type: string
          title: Agent Name
        session_id:
          type: string
          format: uuid
          title: Session Id
      type: object
      required:
        - room_name
        - dispatch_id
        - agent_name
        - session_id
      title: OutboundResponse
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    APIKeyHeader:
      type: apiKey
      in: header
      name: x-api-key

````