Step 1: Downloading and Installing Zoiper 5

Open a web browser and go to the official Zoiper website   

Download the appropriate version of Zoiper 5 for Windows and follow the installation.

Step 2: Setting Up the SIP Line

After a successful installation, launch Zoiper 5. Upon the first launch, a page with tariff options will appear. Choose “Continue as a Free user” as shown below.

On the next screen, enter the following data in the Username/Login and Password fields:

  1. Username: 800XXXXX201
  2. Password: test12345

Click on “Login”.

Enter the server 

The server address may differ from the one mentioned in the instructions or provided to you by us

Click “Next”, then “Skip”.

On this screen, choose SIP UDP and click “Skip”.  In the popup window, click “Yes”.

Next, at the bottom, click “Create Account”.

Step 3: Configuring Audio Codecs and Port

You’ll see a green checkmark indicating the line is active. In the upper-right corner, click on the gear icon.

This will open the settings screen. Navigate to the “Accounts” section.

A menu with a list of accounts will appear. Find and click on our account in the list.

On the top-right, click “Advanced”.

Scroll down and find the “Network Related” section. Uncheck “Use rport” and change “Use STUN” to “Don’t use STUN”.

In the “Audio Codecs” section, leave “G.711 A-law” and “G.711 μ-law” selected, as shown in the screenshot.

In the “Advanced Settings” section, uncheck “Use STUN”.

Below, in the “Network” section, uncheck “Open random available port,” and in the port field, specify a local SIP port in the range of 5060 to 5090, incrementing by 2 (5062, 5064, 5066…).

After configuring, click the close button in the upper left.

Once configured, the main window should appear with a green checkmark indicating an active line. The configuration is complete.