How to setup Ozeki VoIP SIP SDK with Elastix

Elastix is an open-source PBX application based on Asterisk and it becomes more popular every day because of its flexibility. Now you can build your own application with VoIP support using Elastix PBX. In this guide you can read about how to setup Ozeki VoIP SIP SDK with Elastix.

The term, Voice over Internet Protocol (VoIP), refers to a collection of transmission technologies, which make voice communications possible over the Internet. It is also known as Internet telephony and helps the conversion of voice into a digital signal that can be sent over the Internet. These signals are then compressed and translated into IP (Internet Protocol) packets for transmission.

They are converted to a regular telephone signal, if the user is calling on a normal phone. VoIP gives the provision of making calls directly from a desktop computer and uses a special VoIP phone for the purpose. The services and benefits offered by Internet telephony feature the ones which are not available with a traditional phone.

With Ozeki VoIP SIP SDK you can enjoy all the benefits of VoIP technology. You can easily setup Ozeki VoIP SIP SDK and use it in your own application.

On this page you can learn how to setup Elastix PBX and Ozeki VoIP SIP SDK for your application.


If you follow the steps of this guide, you will have a system which is connected to Elastix PBX and works as follows:
First, you need to install your Elastix server. After the installation, you need to create an extension that can be used by Ozeki VoIP SIP SDK to connect to it. After the registration you can start to place your phone calls via Elastix PBX. Figure 1 demonstrates the process:

connection with elastix
Figure 1 - Connection with Elastix

  1. Install Elastix in your network environment.
  2. Login to Elastix and create an extension for Ozeki VoIP SIP SDK.
  3. Ozeki VoIP SIP SDK will register to Elastix using this extension.
  4. You can start calling your contacts.
  5. Ozeki VoIP SIP SDK will call your contacts via Elastix PBX.


Before you begin the configuration of Elastix, it is assumed that you have already installed Elastix PBX on your server.

Step 1.) Configure Elastix

First, open your browser and navigate to the IP address of the computer where Elastix PBX is installed. I installed Elastix on a computer which IP address is Open your browser and navigate to its IP address. In this guide it will be
Enter the Administrator username and password, and click on Submit (Figure 2).

login as an administrator
Figure 2 - Login as Administrator

Once you logged in, click on PBX tab at the top of the page (Figure 3).

click on pbx tab
Figure 3 - Click on PBX tab

This will take you to the Extension page. On this page you can add extensions to your Elastix PBX. Select Generic SIP Device from the Device drop-down menu (Figure 4) and click on Submit.

select generic sip device
Figure 4 - Select Generic SIP device

Provide the details of the extension to the User Extension field and its password to the Secret field (Figure 5). Once it is done, click on Submit.

provide extension details
Figure 5 - Provide extension details

I created two extensions. Extension 100 and 101. Extension 101 will be used by a desktop phone; and extension 100 will be used by Ozeki VoIP SIP SDK. To apply your configuration, click on Apply Configuration Changes Here at the top of the page (Figure 6).

apply changes
Figure 6 - Apply Changes

By applying the changes, the configuration of Elastix is done and now you can configure Ozeki VoIP SIP SDK.

Configure Ozeki VoIP SIP SDK

Before you configure Ozeki VoIP SIP SDK it is assumed that you have already downloaded Ozeki VoIP SIP SDK from the download page and installed it into your computer.

By installing Ozeki VoIP SIP SDK, the Demo Application will also be installed into your computer. Open the Demo Application and provide the extension details into the SIP Account Settings tab. Once it is done, click on Register (Figure 7).

register to elastix
Figure 7 - Register to Elastix

You can see the registered phone line in the Phone Lines section. Dial an extension (e.g. 101) and click on Pick up (Figure 8).

dial an extension
Figure 8 - Dial an extension

At the destination phone you can see an incoming call from Ozeki VoIP SIP SDK (Figure 9) via Elastix PBX.

incoming call from ozeki voip sip sdk
Figure 9 - Incoming call from Ozeki VoIP SIP SDK

After the phone is picked up, the call state is changed to InCall. You can see the active phone call at the Phone Calls section (Figure 10).

active phone call
Figure 10 - Active phone call


If you followed the steps of this guide you have a working system which is connected to Elastix PBX.

If you have any questions, do not hesitate to contact us at info@voip-sip-sdk.com