Visual Voicemail notifications with data off?
My question is, will Visual Voicemail still notify me of new voicemails if I have data off; then I could turn data on to retrieve the voicemail audio? On a related note, if you are in an area with no data service, how does the iPhone notify you of new voicemails?
I haven't found a definite answer to this question in my searching.
iOS 4