Currently Being ModeratedSep 27, 2012 3:41 PM (in response to JCrew7384)
I have heard of others having this issue as well. I BELIEVE this is a bug in the software of iOS 6. My number is a ported number from AT&T, and my backup came from an AT&T iPhone 4... When I setup the iPhone 5 as a new phone, it figures out the voicemail. When I restore from backup, it can't figure it out...
Come on apple.
Currently Being ModeratedSep 28, 2012 7:06 PM (in response to JCrew7384)
I found that this was an issue (when I setup my iPhone 5) was solved when I went in and reset the network settings.
It seems that somehow the provider network settings weren't quite right:
Settings -> General -> Reset -> Reset Network Settings
After resetting the network settings, everything just worked again.
Perhaps the same thing can correct the issue for you as well. (worth a shot)
Currently Being ModeratedOct 5, 2012 2:26 PM (in response to JCrew7384)
This worked for me.
If your running the Onavo app that IS the issue.
Currently Being ModeratedOct 11, 2012 6:49 AM (in response to JCrew7384)
Same problem. Switched from AT&T to Verizon with iPhone 5. Backed up from iPhone 4 via iCloud. I can go through setup of voicemail, but then access not authorized. Tried procedure to "reset network settings, power off, then back on. Same problem exists.