Visual VM isn't working. Voice mails are left and can only be accessed through calling iphone number.
Visual VM not displaying. VM's in phone, but not way to access without calling my own number.
iPhone 3GS, iOS 6
try a reset, hold down the home/powr button together until you see the apple logo and then release, then wait for the phone to boot back up. If that doesn't work then contact your phone carrier.