Unfortunately, this feature is only available to existing customers who already have a VoIP account.
Step 1
Install the official voip client for Premiumize.me from here.

Execute the SetupVoipSoftClient.exe. You might need to confirm the installation of the program by clicking on Yes. Select the language, accept their agreement and continue by clicking Next until installation has started.
Step 2
If you use the Windows firewall you might get asked to allow this program through your firewall. Confirm by clicking on Allow access.

Step 3
Open the voip client and click on the blank screen to open the login window. Enter your voip login details, tick the checkbox if you want to login automatically and confirm by clicking on OK.

Step 4
This is the start screen of our client software. You can see your voip balance here.
If you want to add your own phone number to your profile, you can change it by clicking on the link (1). If you already using one of our voip apps, the phone numbers should already in your profile. Furthermore you can find more information about verifying your phone number here.
To start a call just enter the phone number in the input box and press the green button.

This tutorial was created for version 4.14 on Windows 7, so images in later versions may differ slightly, but the functionality should be the same. If not, please contact our customer service so that we can revise the tutorial and help you.