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

# Voice Call

> The voice call API enables you to send messages from your application through our voice channel to a phone number. Only one-time-passwords (OTP) are allowed for now and these OTPs can not be verified using our Verify Token API.

**Endpoint:** `https://BASE_URL/api/sms/otp/call`

**Request Type:** `POST`

**Sample Response:**

| Options       | Required | Description                                                                                                                               |
| ------------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| api\*key      | yes      | \_string\* <br /> Your API key (It can be found on your [Termii dashboard](https://api.termii.com)).                                      |
| phone\*number | yes      | \_string\* <br /> The destination phone number. Phone number must be in the international format (Example: `23490126727`)                 |
| code          | yes      | *numeric* <br /> Example: `3344` The code you want your users to receive. It has to be numeric and length must be between 4 and 8 digits. |

<CodeGroup>
  ```json JSON theme={null}
  {
   "api_key" : "Your API key",
   "phone_number" : "2349800000000",
   "code" : 55675,

  }
  ```

  ```json JavaScript theme={null}
  var data = {
           "api_key" : "Your API key",
           "phone_number" : "2349800000000",
           "code" : 55675
    };

  var data = JSON.stringify(data);

  var xhr = new XMLHttpRequest();
  xhr.withCredentials = true;

  xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
  console.log(this.responseText);
  }
  });

  xhr.open("POST", "https://BASE_URL/api/sms/otp/send/voice");
  xhr.setRequestHeader("Content-Type", "application/json");
  xhr.setRequestHeader("Content-Type", "application/json");

  xhr.send(data);
  ```

  ```json NodeJs theme={null}

  var request = require('request');
  var data = {
  "api_key" : "Your API key",
  "phone_number" : "2349800000000",
  "code" : 55675
  };
  var options = {
  'method': 'POST',
  'url': 'https://BASE_URL/api/sms/otp/send/voice',
  'headers': {
  'Content-Type': ['application/json', 'application/json']
  },
  body: JSON.stringify(data)

  };
  request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
  });
  ```

  ```json Python theme={null}

  import requests
  url = "https://BASE_URL/api/sms/otp/send/voice"
  payload = {
         "api_key" : "Your API key",
         "phone_number" : "2349800000000",
         "code" : 55675
     }
  headers = {
  'Content-Type': 'application/json',
  }
  response = requests.request("POST", url, headers=headers, json=payload)
  print(response.text)
  ```

  ```json C# theme={null}
  RestClient restClient = new RestClient("https://BASE_URL/api/sms/otp/send/voice");

  //Creating Json object
  JObject objectBody = new JObject();
  objectBody.Add("api_key","Your API Key");
  objectBody.Add("phone_number","+2348109077743");
  objectBody.Add("code", 55675)

  RestRequest restRequest = new RestRequest(Method.POST);

  restRequest.AddHeader("Content-Type", "application/json");
  restRequest.AddParameter("application/json", objectBody, ParameterType.RequestBody);
  IRestResponse restResponse = restClient.Execute(restRequest);
  Console.WriteLine(restResponse.Content);  
  ```

  ```json Java theme={null}

  Unirest.setTimeouts(0, 0);
  HttpResponse<String> response = Unirest.get("https://BASE_URL/api/sms/otp/send/voice")
  .header("Content-Type", "application/json")
  .body("{\n\n \"api_key\" : \"Your API key\",\n  
  \"phone_number\" : \"2349800000000\",\n  
  \"code\" : 55675\n }")
  .asString();
  ```

  ```json Php theme={null}

  <?php

  $curl = curl_init();

  curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://BASE_URL/api/sms/otp/send/voice',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 55675,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'GET',
  CURLOPT_POSTFIELDS =>'{

   "api_key" : "Your API key",
   "phone_number" : "2349800000000",
   "code" : 55675
  }',
  CURLOPT_HTTPHEADER => array(
  'Content-Type: application/json'
  ),
  ));

  $response = curl_exec($curl);

  curl_close($curl);
  echo $response;
  ```
</CodeGroup>

**Sample Response:**

```
{
     "code": "ok",
     "message_id": "453166532802459832",
     "pinId": "29ae67c2-c8e1-4165-8a51-8d3d7c298081",
     "message": "Successfully Sent",
     "balance": 77.5,
     "user": "Termii Test"
  }
```