Bria is a VoIP application for iPhone, iPad and iPod Touch, allowing you to make phone calls over Wifi or 3G. You can download Bria from iTune store or Counterpath. After Bria is installed, follow the steps below for WorldNet VIP settings:
Start the programe, go to "Settings" and click "Advanced Settings".
Under "Advanced Settings" click "Network Traversal Strategy".
Scroll down under "Network Traversal", turn off Stun, ICE and DNS SRV.
Go back to "Settings", click "Accounts".
Under "Accounts", click Add button at the top right corner.
Under "New Account", enter the following informations:
Display as: Your VIP number e.g. 09880xxxx
User Name: Your VIP number e.g. 09880xxxx
Password: xxxxxxx
Domain: auckland.worldnet.co.nz
Enable: ON
Click "Save" on top right corner.
You are ready to make your first WorldNet VIP call.