---
title: "Lead Voice Session"
method: POST
path: "/api/leads/{lead_id}/voice-session"
---

# Lead Voice Session

`POST /api/leads/{lead_id}/voice-session`

## Request

- Base URL: `https://api.outcallerai.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.outcallerai.com/api/leads/{lead_id}/voice-session`
- Auth: none declared

Create a WebRTC voice session for a specific lead.

## Path parameters

- `lead_id` string, required

## Request body

- LeadVoiceSessionRequest: Request to create a WebRTC voice session for a lead.
  - `session_id` string, nullable
  - `provider` 'ultravox'

## Response `200`

Successful Response

- LeadVoiceSessionResponse: Response containing voice session details for a lead.
  - `join_url` string, required
  - `session_id` string, required
  - `call_id` string, required
  - `provider` string, required
  - `lead_name` string, nullable
  - `agent_name` string, nullable
  - `workspace_name` string, nullable

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/outcallerai/apis/outcallerai-api.md) - [All operations](https://skmtc.dev/outcallerai/apis/outcallerai-api/llms.txt) - [OpenAPI document](https://skmtc.dev/outcallerai/apis/outcallerai-api/revisions/40736cf433b4?raw)