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JavaScript VoIP developers 101

Part 7: How to use the JavaScript Call Assistant (Part 1)

Study the following article to get more information about the JS API HUD. This guide presents how to receive and initiate voice calls, how to send messages to specific users. You will be able to manage your employees telephone activity with a simple graphical user interface.

What you need:

Please follow these steps for develop and use your first application with our JavaScript HUD:

Step 1: Get started

First of all, you need to download and install the Ozeki Phone System. You can find more information and help in the following page.

For using JavaScript Call Assistant a webserver is essentially needed on which your written code will be hosted. After you have downloaded and unzipped Ozeki JavaScript Call Assistant, place the files on a webserver.

In this example, Wampserver and Apache are used. You can download Wampserver from here. After installing it, open the folder where your Wamp Server has been installed, then select the www folder and copy the unzipped files to www folder. The Code example 1 shows how is the basic index.html looks like. Also shows how can you connect the Call Assistant to Ozeki Phone System.

<title>Ozeki Phone System JS API HUD example</title>
<link rel="stylesheet" type="text/css" href="style.css">
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script type="text/javascript" src="http://(IP of your PBX : Port Number)/WebphoneAPI"></script> 
<script src="chat.js"></script>
<script src="hud.js"></script>
<script>
    // -------- Use your settings -------- //
    var serverAddress = "(IP of your PBX)";
    var webphoneExtensionNumber = "(Webphone Extension Number)";
    var webphoneExtensionPassword = "(Webphone Extension Password)";
    // ----------------------------------- //

    $(document).ready(function () {
        init(serverAddress, webphoneExtensionNumber, webphoneExtensionPassword);
    });
</script>

Code example 1 - ID and password setup

As you can see, the program adds reference to the running Ozeki Phone System's WebphoneAPI script, and to the chat.js and the hud.js files, too. You have to configure the highlighted settings (serverAddress, webphoneExtensionNumber, webphoneExtensionPassword) with the datas of your PBX.
When the document has been loaded, the init() function will be called with the configured parameters from the hud.js.

Step 2: Create a webphone extension in Ozeki Phone System

If you would like to learn how to add and configure a webphone extension, please visit the Webphone Installation guide.

Step 3: Create users in Ozeki Phone System

To create users, go to Connections then click on 'Users'.

create users
Figure 1 - How to create users

After it, click on 'Add User'.

add user
Figure 2 - Add user

Finally fill in the form, then click 'OK'.

create user
Figure 3 - Create user

Step 4: Associate SIP extensions for the users

If you are done with creating users and adding new extensions, you can associate them.
In the Extensions panel choose the extension, you want to pair with a user.

open extension
Figure 4 - Open extension

Set up the selected extension by clicking 'Configure'.

configure extension
Figure 5 - Configure extension

To search users you want to associate with, click on 'Find user'.

find user
Figure 6 - Find user

Select the user by clicking on Select next to his/her name. Then confirm it with the 'OK' button.

select user
Figure 7 - Select user

Step 5: Using JavaScript HUD

Once you set up everything, you can start managing the calls.

Parts of the HUD

The hud consists of 4 windows:

  • current user window: shows the user status, user name and call status
  • users window: shows the users and their states (speaking, online, offline)
  • chat window: you can send instant messages here
  • call history window: shows the recent calls in details

hud windows
Figure 8 - HUD windows

Make a test call

Search for the user you want to call and click on the green phone icon or type in the phone number, then click on call button. Once the call is in progress, you can hold or hang up it anytime.

make a test call
Figure 9 - Make a test call

Send an instant message

Search for the user you want to send message, then click on the white bubble under the user name. A new chat tab will open and now you can send short messages easily.

send instant message
Figure 10 - Send instant message

If you have any questions or need assistance, please contact us at  info@ozekiphone.com

More information