I hold the 1 key in the dialer menu to access my voicemail but i get an error saying: "Missing voicemail number. No voicemail number is stored on the sim card.", and I can only click OK.
Any help on fixing this issue will be appreciated.
I had this problem at first as well. I solved it by calling my phone and leaving myself a message. Once I got the new voicemail notification on my phone, the problem fixed itself.