How to switch between VoIP and mobile calling mode
The dial pad menu allows you to switch between calling modes. The currently selected calling mode is indicated above the dial pad. For more information on calling modes, go to How to configure your Dialing Service settings.
1. Touch the Call tab.
2. Touch the Menu icon.
3. To enter VoIP calling mode, touch Turn On VoIP Mode. To enter mobile calling mode, touch Turn Off VoIP Mode.