# Welcome

Documentation is broken down into different sections based on use.

### WEB REST REQUESTS <a href="#web-rest-requests" id="web-rest-requests"></a>

Web requests are offered using HTTP GET, HTTP POST, or HTTP Json POST, at your preference.&#x20;

To use Json POST, set your header to: Content-Type: application/json

```php
curl https://v1.api19.com/dids/ratecenters/list  \
   -u 'API-Token'

OR

curl https://v1.api19.com/dids/ratecenters/list?key=apitoken

OR

curl https://v1.api19.com/dids/ratecenters/list \
   -d '{key:"mykey", npa:"720"}' \
   -H 'Content-Type: application/json'
```

For instance, the above request would list any areas our phone number pool covers. You can send the API token as a username/password, as a GET variable (token), or as a POST variable.

### NUMBERS / ORDERING <a href="#numbers-ordering" id="numbers-ordering"></a>

This section gives information on listing states / ratecenters, and ordering numbers.

### MY INVENTORY <a href="#my-inventory" id="my-inventory"></a>

Your numbers, listing them and ability to remove them, or reroute them.

### SMS / MMS <a href="#sms-mms" id="sms-mms"></a>

Send and receive SMS / MMS message via our API.

### CALL APIS <a href="#call-apis" id="call-apis"></a>

This section is dedicated to the Call API which allows you to make and receive calls via web REST API calls.

### LOOKUPS <a href="#call-apis" id="call-apis"></a>

Get information about numbers via web REST calls.

### NUMBER PORTABILITY <a href="#call-apis" id="call-apis"></a>

Submit port requests and review port information.

### FAXING <a href="#call-apis" id="call-apis"></a>

Send and receive faxes via the API