Here are the step-by-step setup instructions for Zoiper softphone on your PC:

PC setup 

Step 1: Open Zoiper in your Laptop/PC.

Step 2: If you already have a Voip account, please enter your login credentials.

If not, click on Create Account.

Step 3: Select Moitele as your service provider.

Step 4: Enter the credentials provided by Moitele.

If you don't have credentials, create an account in Moitele user portal. 

Click here for the user portal: app.moitele.com

Step 5: Click Login.

Step 6: The Zoiper dialler page is shown, you can start calling, if you see a green colour tick mark.