> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.conversive.ai/api-sdk-docs/initiate-call/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.conversive.ai/_mcp/server.

# Initiate Call

POST https://app.beconversive.com/contact-center/v1/calls/initiate
Content-Type: application/json

Start a new outbound call. Two calling modes are available — choose the one that fits your integration.

- **Browser calling** — the response includes a LiveKit `token` and
  `livekit_url`. Pass these to your WebRTC client immediately so the
  agent can join the call from a browser tab.

- **Phone-bridge calling** — the platform dials the agent's configured
  phone number first, then bridges to the customer. `token` and
  `livekit_url` are returned as `null`.


Reference: https://docs.conversive.ai/api-sdk-docs/initiate-call

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Body (application/json)

This endpoint expects an object.

- `phone_number` (string, required) — Customer number to dial in E.164 format, e.g. `+919580440262`.
- `from_number` (string, required) — Business number used as the caller ID. Must belong to the authenticated account.
- `contact_name` (string, optional) — Optional display name for the contact.
- `use_agent_phone` (boolean, optional, default: false) — `false` — agent joins via browser (default). `true` — platform calls the agent's phone and bridges to the customer.

## Response

### 200

Call successfully initiated.

- `call_id` (string, optional) — Unique ID of the created call. **Save this — it is required for all follow-up operations.**
- `room_name` (string, optional) — LiveKit room name created for this call. Required for call action requests.
- `token` (string, optional, nullable) — LiveKit browser-join token. Present only when `agent_join_via_phone` is `false`.
- `livekit_url` (string, optional, nullable) — LiveKit server WebSocket URL. Present only when `agent_join_via_phone` is `false`.
- `agent_join_via_phone` (boolean, optional) — Reflects the calling mode that was used.

## Errors

### 400 Bad Request Error

Invalid account or user context, invalid `from_number`, or missing agent phone configuration.

- `any`

### 401 Unauthorized Error

Unauthorized — missing or invalid JWT.

- `any`

### 500 Internal Server Error

Internal error — call setup failed.

- `any`

## Examples

### 200 OK — Browser flow

**Request**

```json
{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}
```

**Response**

```json
{
  "call_id": "550e8400-e29b-41d4-a716-446655440000",
  "room_name": "cc_outbound_550e8400-e29b-41d4-a716-446655440000",
  "token": null,
  "livekit_url": null,
  "agent_join_via_phone": true
}
```

**SDK Code**

```python 200 OK — Browser flow
import requests

url = "https://app.beconversive.com/contact-center/v1/calls/initiate"

payload = {
    "phone_number": "+14155552671",
    "from_number": "+14155550000",
    "use_agent_phone": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript 200 OK — Browser flow
const url = 'https://app.beconversive.com/contact-center/v1/calls/initiate';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"phone_number":"+14155552671","from_number":"+14155550000","use_agent_phone":true}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go 200 OK — Browser flow
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.beconversive.com/contact-center/v1/calls/initiate"

	payload := strings.NewReader("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby 200 OK — Browser flow
require 'uri'
require 'net/http'

url = URI("https://app.beconversive.com/contact-center/v1/calls/initiate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}"

response = http.request(request)
puts response.read_body
```

```java 200 OK — Browser flow
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://app.beconversive.com/contact-center/v1/calls/initiate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")
  .asString();
```

```php 200 OK — Browser flow
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.beconversive.com/contact-center/v1/calls/initiate', [
  'body' => '{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp 200 OK — Browser flow
using RestSharp;

var client = new RestClient("https://app.beconversive.com/contact-center/v1/calls/initiate");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift 200 OK — Browser flow
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://app.beconversive.com/contact-center/v1/calls/initiate")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### 200 OK — Phone-bridge flow

**Request**

```json
{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}
```

**Response**

```json
{
  "call_id": "550e8400-e29b-41d4-a716-446655440000",
  "room_name": "cc_outbound_550e8400-e29b-41d4-a716-446655440000",
  "token": null,
  "livekit_url": null,
  "agent_join_via_phone": true
}
```

**SDK Code**

```python 200 OK — Phone-bridge flow
import requests

url = "https://app.beconversive.com/contact-center/v1/calls/initiate"

payload = {
    "phone_number": "+14155552671",
    "from_number": "+14155550000",
    "use_agent_phone": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript 200 OK — Phone-bridge flow
const url = 'https://app.beconversive.com/contact-center/v1/calls/initiate';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"phone_number":"+14155552671","from_number":"+14155550000","use_agent_phone":true}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go 200 OK — Phone-bridge flow
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.beconversive.com/contact-center/v1/calls/initiate"

	payload := strings.NewReader("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby 200 OK — Phone-bridge flow
require 'uri'
require 'net/http'

url = URI("https://app.beconversive.com/contact-center/v1/calls/initiate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}"

response = http.request(request)
puts response.read_body
```

```java 200 OK — Phone-bridge flow
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://app.beconversive.com/contact-center/v1/calls/initiate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")
  .asString();
```

```php 200 OK — Phone-bridge flow
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.beconversive.com/contact-center/v1/calls/initiate', [
  'body' => '{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp 200 OK — Phone-bridge flow
using RestSharp;

var client = new RestClient("https://app.beconversive.com/contact-center/v1/calls/initiate");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift 200 OK — Phone-bridge flow
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://app.beconversive.com/contact-center/v1/calls/initiate")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### Browser calling

**Request**

```json
{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}
```

**Response**

```json
{
  "call_id": "550e8400-e29b-41d4-a716-446655440000",
  "room_name": "cc_outbound_550e8400-e29b-41d4-a716-446655440000",
  "token": null,
  "livekit_url": null,
  "agent_join_via_phone": true
}
```

**SDK Code**

```python Browser calling
import requests

url = "https://app.beconversive.com/contact-center/v1/calls/initiate"

payload = {
    "phone_number": "+14155552671",
    "from_number": "+14155550000",
    "use_agent_phone": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Browser calling
const url = 'https://app.beconversive.com/contact-center/v1/calls/initiate';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"phone_number":"+14155552671","from_number":"+14155550000","use_agent_phone":true}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Browser calling
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.beconversive.com/contact-center/v1/calls/initiate"

	payload := strings.NewReader("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Browser calling
require 'uri'
require 'net/http'

url = URI("https://app.beconversive.com/contact-center/v1/calls/initiate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}"

response = http.request(request)
puts response.read_body
```

```java Browser calling
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://app.beconversive.com/contact-center/v1/calls/initiate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")
  .asString();
```

```php Browser calling
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.beconversive.com/contact-center/v1/calls/initiate', [
  'body' => '{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Browser calling
using RestSharp;

var client = new RestClient("https://app.beconversive.com/contact-center/v1/calls/initiate");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Browser calling
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://app.beconversive.com/contact-center/v1/calls/initiate")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### Phone-bridge calling

**Request**

```json
{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}
```

**Response**

```json
{
  "call_id": "550e8400-e29b-41d4-a716-446655440000",
  "room_name": "cc_outbound_550e8400-e29b-41d4-a716-446655440000",
  "token": null,
  "livekit_url": null,
  "agent_join_via_phone": true
}
```

**SDK Code**

```python Phone-bridge calling
import requests

url = "https://app.beconversive.com/contact-center/v1/calls/initiate"

payload = {
    "phone_number": "+14155552671",
    "from_number": "+14155550000",
    "use_agent_phone": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Phone-bridge calling
const url = 'https://app.beconversive.com/contact-center/v1/calls/initiate';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"phone_number":"+14155552671","from_number":"+14155550000","use_agent_phone":true}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Phone-bridge calling
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.beconversive.com/contact-center/v1/calls/initiate"

	payload := strings.NewReader("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Phone-bridge calling
require 'uri'
require 'net/http'

url = URI("https://app.beconversive.com/contact-center/v1/calls/initiate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}"

response = http.request(request)
puts response.read_body
```

```java Phone-bridge calling
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://app.beconversive.com/contact-center/v1/calls/initiate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}")
  .asString();
```

```php Phone-bridge calling
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.beconversive.com/contact-center/v1/calls/initiate', [
  'body' => '{
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Phone-bridge calling
using RestSharp;

var client = new RestClient("https://app.beconversive.com/contact-center/v1/calls/initiate");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"phone_number\": \"+14155552671\",\n  \"from_number\": \"+14155550000\",\n  \"use_agent_phone\": true\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Phone-bridge calling
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "phone_number": "+14155552671",
  "from_number": "+14155550000",
  "use_agent_phone": true
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://app.beconversive.com/contact-center/v1/calls/initiate")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```