When on Wi-Fi, if turn off Celuar data, AT&T Stops More Billing Usuage

With respect, and despite Deggie confident assertiveness in his answer, Deggie is confused. Based on my personal observation, and consistent with what AT&T advised me subsequently, when I have cellular data on, I am charged for acccessing the internet even though a wifi is available. Stepping away from fact and moving on to supposition, I beileve that when cellular data is on, then the cellular system is used instead of the available wifi.

Nurkey - that conversation finished over three months ago... and Deggie is correct.

Page 189 of the User Guide:

"Wi-Fi settings determine whether iPhone uses local Wi-Fi networks to connect to the Internet. If no Wi-Fi networks are available, or you’ve turned Wi-Fi off, then iPhone connects to the Internet via your cellular data network, when available."

"Once you join a Wi-Fi network manually, iPhone automatically joins it whenever the network is in range. If more than one previously used network is in range, iPhone joins the one last used."

"When you’re trying to access the Internet, by using Safari or Mail for example, and you aren’t in range of a Wi-Fi network you‘ve previously used, this option tells iPhone to look for another network."

I get false sent data charges even if my phone is plugged in or not. Cellular data is off push locations are off. I even have turned my phone off and still get the sent data charges and its funny because they are always when im sleeping or when i am on a wi-fi connection. At&T making a killing from these charges and probably throwing Apple a kickback

ATT is having same problem as verizon. I got a warning about my data usage after I updated my 4 to ios 6. They say I used more data than I ever had in the past but I was on wi fi not cellular. So Apple and ATT need to fix this and fix it now.

PS I know how to turn of my cellular but that is not the point. The point is there is a glitch with wifi that apple needs to fix.