Currently Being ModeratedOct 7, 2012 5:42 AM (in response to onecount)
Contact AT&T to confirm the APN settings are correct.
I personally find it difficult to believe that what you describe is hardware related.
Currently Being ModeratedOct 26, 2012 6:58 PM (in response to diesel vdub)
which APN settings? the visual voice mail ones? why would they be affected by the profile? if they are, it is a bug. This is a commercial device. It comes pre-configured with the correct settings for VVM. If installing the profile messes up these settings, it is a bug in my view.
Recall that iPhone5 is LTE-capable, maybe the way the APNs are engaged for different types of traffic is different for this hardware.
Currently Being ModeratedOct 27, 2012 4:45 PM (in response to onecount)
WHY would you be installing custom APN settings for an iPhone on AT&T? It contains the correct settings. All you can do by trying to change them is mess things up.
Currently Being ModeratedOct 27, 2012 5:42 PM (in response to KiltedTim)
we need this for our enterprise deployment. We require to use a proxy server too. This is our enterprise requirement. We had no issue before iPhone5 (at least not with AT&T devices).
Currently Being ModeratedOct 27, 2012 6:34 PM (in response to onecount)
Have you tried it on any other devices running iOS 6?
Currently Being ModeratedOct 27, 2012 6:56 PM (in response to KiltedTim)
So, here is where we saw this problem:
Verizon and Sprint, pre-iPhone5, iOS 5 and iOS 6
Sprint and AT&T, iPhone5 (and of course iOS 6)
Japan (we have a deployment there as well):
SoftBank: all iPhones (iOS 5 and iOS 6)
KDDI: pre-iPhone5 (iOS 5 and iOS 6). iPhone5 has not been tried on this carrier by my team yet.
Please note that whenever we have the VVM issue, we also have MMS (Multimedia Messaging, not iMessage) being blocked (not working) at the same time. It seems that they (MMS and VVM) either both work together or they are both blocked together when we do our APN proxy.