URL: https://api.stringee.com/v1/call2/adduser
HTTP method: POST
Custom HTTP POST header: Name: X-STRINGEE-AUTH Value: JSON web token (JWT), see REST API Authentication
POST data (body):
{
    "callId": "YOUR_CALL_ID",
     "from": {
        "type": "external",
        "number": "from_number",
        "alias": "from_number"
    },
    "to": {
        "type": "TO_TYPE",
        "number": "TO_NUMBER",
        "alias": "TO_NUMBER_ALIAS"
    },
   "spyCall": false,
}| Field | Type | Require | Description | Default | 
|---|---|---|---|---|
| callId | String | Yes | The ID of the Call | |
| from | JsonObject | Yes | JSON data which specify where's the call from | |
| to | JsonObject | Yes | JSON data which specify where's the call to | |
| spyCall | Boolean | No | If true, user can't speak. | False | 
Response:
{
    "r": response_code,
    "message": "response_message"
}| Field | Type | Require | Description | 
|---|---|---|---|
| r | Int | Yes | Response code | 
| message | String | No | Response message | 
Sample request
POST /v1/call2/adduser HTTP/1.1
Host: https://api.stringee.com
X-STRINGEE-AUTH: json_web_token
Accept: application/json
{
    "callId": "call-vn-1-KVN96USEG7-1537850722550",
     "from": {
        "type": "external",
        "number": "STRINGEE_NUMBER",
        "alias": "STRINGEE_NUMBER"
    },
    "to": {
        "type": "internal",
        "number": "userid1",
        "alias": "userid1"
    },
}Sample response
{"r":0}