Often after a restore, update or jailbreak I've seen visual voicemail not work until I've dialed in via phone (hold the 1 button on the keypad) and/or left myse

Often after a restore, update or jailbreak I've seen visual voicemail not work until I've dialed in via phone (hold the 1 button on the keypad) and/or left myself a voicemail. It's always come back for me, though.