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

# Pre-accept call (optional)

> Sends the SDP answer early (before accept) to reduce audio clipping at call start. OPTIONAL — the call only connects on accept. Body: { sdp, sdpType?:"answer" }. {callId} accepts id or wacid. Meta numbers only (a signaling concept; web numbers → 400 FEATURE_NOT_SUPPORTED).

**Requires a number-scoped key.**



## OpenAPI

````yaml openapi.json POST /v1/calls/{callId}/pre-accept
openapi: 3.1.0
info:
  title: Pilot Status API
  version: 1.0.0
  license:
    name: Pilot Status Terms of Service
    url: https://pilotstatus.com.br/terms
  description: >-
    Public REST API for Pilot Status. Authenticate with the `x-api-key: ps_...`
    header (or `x-api-key-id`). Base URL: https://pilotstatus.com.br
servers:
  - url: https://pilotstatus.com.br
security:
  - apiKey: []
  - apiKeyId: []
paths:
  /v1/calls/{callId}/pre-accept:
    post:
      tags:
        - Calls
      summary: Pre-accept call (optional)
      description: >-
        Sends the SDP answer early (before accept) to reduce audio clipping at
        call start. OPTIONAL — the call only connects on accept. Body: { sdp,
        sdpType?:"answer" }. {callId} accepts id or wacid. Meta numbers only (a
        signaling concept; web numbers → 400 FEATURE_NOT_SUPPORTED).


        **Requires a number-scoped key.**
      operationId: post_calls_callId_pre-accept
      parameters:
        - name: callId
          in: path
          required: true
          description: Pilot Status id (call_...) or Meta wacid.
          schema:
            type: string
          example: wacid.ABGG...
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                sdp:
                  type: string
                  description: SDP answer from your WebRTC client.
              required:
                - sdp
            example:
              sdp: "v=0\r\n..."
      responses:
        '200':
          description: Pre-accept
          content:
            application/json:
              example:
                success: true
                id: call_01HZX...
                status: RINGING
        '400':
          description: Invalid payload or parameters
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
              example:
                error: Validation error
        '401':
          description: Missing or invalid `x-api-key` / `x-api-key-id` header
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
              example:
                error: Unauthorized
        '403':
          description: Tenant-scoped key used on a number-scoped endpoint
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
              example:
                error: Tenant-scoped keys cannot call number endpoints
                code: TENANT_SCOPE_NOT_ALLOWED
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
              example:
                error: Too many requests
components:
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
      description: Your ps_ API key
    apiKeyId:
      type: apiKey
      in: header
      name: x-api-key-id
      description: API key id (alternative to x-api-key)

````