IPhone-Do I Use Minutes
From PhonePower Knowledge Base
The iPhone application has two operating modes, one of them can use data on your phone while the other does not.
1. To locate these settings open up the Phone Power application. It will take you to the dial pad as usual.
2. Tap on Settings located on the top right corner of your screen
3. Tap on Preferences
4. On the bottom select 3G/ Wi-Fi Selection
5. This is where you can toggle what type of data you want to use. 3G/wifi etc...
Prefer Wi-Fi – This mode uses your Data plan or Local Wifi connection to make and receive calls, this does not touch your cell phone minutes.
Wi-Fi Only – This mode uses only your Local Wifi connection to make and receive calls.
