# Getting Started

OCA CALL Gateway provide solution to send SMS. In order to hit the OCA CALL Gateway, we provide Endpoint url, so client can hit and use the API.

OCA Endpoint URL : <mark style="color:red;">**<https://webapigw.ocatelkom.co.id>**</mark>

**Before you start**

You will need :&#x20;

* OCA API Dashboard account username and password
* you have created IVR on blast dashboard

## IVR Designer

Before you can make a call, you need to make the IVR (Interactive Voice Response) first. In order to make ivr you should log in to dashboard, you can visit <https://dashboard.ocatelkom.co.id>. Please provide your username and password to log in.

To start making ivr please select IVR menu OCA Blast -> Voice -> IVR and Press Add ivr button to start design your ivr.

We want to show you how to build ivr with dynamic audio, so you can play audio dynamicallya from api trigger call. You can start with choose component Play External Audio, drag and drop the component to the board, as shown in the picture below.

In the component editor, on the right side, you will see the form for specific component, please fill the Audio Url with dynamic variable start with “{{“ symbol and end with “}}” symbol, as shown in the picture below.


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