Originally Posted by aiharkness
Text messages are not data. That uses the voice network. But if you are using UMA then you have voive service even with mobile network off.
I'm not sure this is the answer, but I would find out if setting preferred network for calls to mobile network only, with mobile network off, is the answer. See what others say. Now that you've clarified it someone will be able to provide the certain answer.
Posted via BlackBerryForums.com Mobile
I know their not data, but I was just saying that it was an indication that not only wifi was on, like I had wanted. Texts can not be received through wifi...