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

# Reject an incoming call

> Programmatically reject a specific incoming call. This endpoint allows selective call rejection
based on your application logic (e.g., time-of-day rules, caller whitelists, agent availability).

The call must still be ringing — rejection will fail if the call has already ended or been answered.

This is complementary to the auto-reject feature (`WHATSAPP_AUTO_REJECT_CALL=true`) which rejects
all incoming calls globally. Use this API for fine-grained control.

**Required fields from webhook:**
- `caller_jid`: Use `payload.from` from the `call.offer` webhook event
- `call_id`: Use `payload.call_id` from the `call.offer` webhook event




## OpenAPI

````yaml /openapi.yml post /call/reject
openapi: 3.0.0
info:
  title: WhatsApp API MultiDevice
  version: 9.7.0
  description: |
    This API is used for sending whatsapp via API.

    The web dashboard is a separate project (gowa-ui); the server downloads its
    latest release asset and serves it at `/` (or returns a JSON banner when
    APP_UI_ENABLED=false).

    Device scoping:
    - Send `X-Device-Id` on all device-scoped REST calls.
    - WebSocket: connect to `/ws?device_id=<id>`.
    - WebSocket auth (when basic auth is enabled): browsers cannot set an
      Authorization header on WebSocket connections, so also pass
      `&authorization=<base64(user:pass)>` in the query string. Use TLS in
      production since the credential is visible in the URL.
servers:
  - url: http://localhost:3000
security:
  - basicAuth: []
tags:
  - name: app
    description: Initial Connection to Whatsapp server
  - name: device
    description: Device management for multi-device support
  - name: user
    description: Getting information
  - name: send
    description: Send Message (Text/Image/File/Video).
  - name: message
    description: Message manipulation (revoke/react/update).
  - name: call
    description: Call management (reject incoming calls)
  - name: chat
    description: Chat conversations and messaging
  - name: group
    description: Group setting
  - name: newsletter
    description: newsletter setting
  - name: chatwoot
    description: Chatwoot integration for customer support
paths:
  /call/reject:
    post:
      tags:
        - call
      summary: Reject an incoming call
      description: >
        Programmatically reject a specific incoming call. This endpoint allows
        selective call rejection

        based on your application logic (e.g., time-of-day rules, caller
        whitelists, agent availability).


        The call must still be ringing — rejection will fail if the call has
        already ended or been answered.


        This is complementary to the auto-reject feature
        (`WHATSAPP_AUTO_REJECT_CALL=true`) which rejects

        all incoming calls globally. Use this API for fine-grained control.


        **Required fields from webhook:**

        - `caller_jid`: Use `payload.from` from the `call.offer` webhook event

        - `call_id`: Use `payload.call_id` from the `call.offer` webhook event
      operationId: rejectCall
      parameters:
        - $ref: '#/components/parameters/DeviceIdHeader'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - caller_jid
                - call_id
              properties:
                caller_jid:
                  type: string
                  example: 628987654321@s.whatsapp.net
                  description: JID of the caller (from webhook `payload.from`)
                call_id:
                  type: string
                  example: ABC123DEF456
                  description: Unique call identifier (from webhook `payload.call_id`)
      responses:
        '200':
          description: Call rejected successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericResponse'
        '400':
          description: Bad Request (missing or invalid fields)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorBadRequest'
        '500':
          description: Internal Server Error (call already ended, not connected, etc.)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorInternalServer'
components:
  parameters:
    DeviceIdHeader:
      name: X-Device-Id
      in: header
      required: false
      description: >
        Device identifier for multi-device support. Required when multiple
        devices are registered.

        If only one device is registered, it will be used as the default.

        Can also be provided as `device_id` query parameter.
      schema:
        type: string
        example: my-device-id
  schemas:
    GenericResponse:
      type: object
      properties:
        code:
          type: string
          example: SUCCESS
        message:
          type: string
          example: Success
        results:
          type: string
          example: null
    ErrorBadRequest:
      type: object
      properties:
        code:
          type: string
          example: 400
          description: HTTP Status Code
        message:
          type: string
          example: field cannot be blank
          description: Detail error message
        results:
          type: object
          example: null
          description: additional data
    ErrorInternalServer:
      type: object
      properties:
        code:
          type: string
          example: INTERNAL_SERVER_ERROR
          description: SYSTEM_CODE_ERROR
        message:
          type: string
          example: you are not loggin
          description: Detail error message
        results:
          type: object
          example: null
          description: additional data
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic

````

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