Here is a very simple solution to a problem I’ve recently had with my brand new iPhone 3G. I tried to use Visual Voicemail but nothing seemed to really work. Even important services like declining a call and sending it to Voicemail weren’t enabled.
I began doing some research on the internet, called a service hotline but nothing helped. I reset the iPhone to exclude every trouble caused by a non-standard setting but even this didn’t solve the problem. Then I visited the carrier’s support page and was helped by a friendly forum user who said that it could be just the network settings, which might be corrupted. I would have to reset them. This I did and – surprise – it finally worked!
So before you restore your iPhone or ANYTHING, just try this solution, it worked for me:
Go to Settings (on your home screen) -> General -> Reset and push the button Reset Network Settings, then confirm. Done.



No dice for me. I think that its a problem on ATT’s end.
AWESOME!! did exactly what I needed. It seemed like my voicemail button in the corner was a dead spot actually until I did this reset. Now my voicemail works like it’s supposed to… thank
Worked for me. also. AT&T had no idea how to fix it.
Thanks
Worked for me as well! Thanks!
Looks like it worked but not sure why. Had a new SIM card installed and watched the ATT guy reset as above. Then went to the Apple store (what a pain – had to wait until 8pm to “get an appointment” give me a break). Apple gave me a new phone which worked for about an hour. Two days later and of course I have 5 messages waiting without an indicator.
Reset according to these instructions and it seemed to work but this is a serious problem. Sounds like ATT and Apple need to get together better.
All this happened 8/30/09. I’m on release 3.0.1 You would think this would be a no brainer.