While the voicemail notification doesn't work, if you access the Voicemail app on the phone, it will indicate within the app that you have unlistened voicemails.
I noticed that if you go into your call settings, the option of Voicemail service was set to My Carrier, but when you open the option, neither the My Carrier nor Google Voice option was selected. I chose My Carrier, but the voicemail notification did not work. Also, for the voicemail setting where the voicemail number is set, if you add the pause and then your voicemail password so that the phone will automatically send your voicemail password, while it saves, the addition does not get used by the phone when you call your voicemail. I changed the voicemail number from *86 to *86,xxxxxx and when I tap on the choice to listen to my voicemails, it just dials *86.
I noticed that if you go into your call settings, the option of Voicemail service was set to My Carrier, but when you open the option, neither the My Carrier nor Google Voice option was selected. I chose My Carrier, but the voicemail notification did not work. Also, for the voicemail setting where the voicemail number is set, if you add the pause and then your voicemail password so that the phone will automatically send your voicemail password, while it saves, the addition does not get used by the phone when you call your voicemail. I changed the voicemail number from *86 to *86,xxxxxx and when I tap on the choice to listen to my voicemails, it just dials *86.