Note : Only the Premium version of Zoiper PC supports Auto Provisioning.
First create a device of type PC/TABLET in your portal and leave the type and model as Zoiper windows 5 and donwload the provisioning file on your local machine. You should receive a file Provision.xml.
Put the file in the Zoiper current user folder on windows. It is located in c:Users_user_AppDataRoamingZoiper
Note: The AppData folder is a hidden folder.
Start zoiper. The configuration will be done automatically.