Disabling the voicemail is definitely a possibility but you'll need to contact us to remove it. This will not prevent anyone from calling you. It will only prevent anyone from leaving a voicemail message, they will only hear ringing.
Hope this helps!
but how could one disable voice mail system without callers having to land in a general voicemail system and hearing: "You've reached the voice mail system.. If you have a mailbox on this system, press star. To leave a message for someone, enter their ten digit number now..."?
Can you disable also the network "conditional" forwarding? T-Mobile in Europe has an option of notifiyng callers with a free message that the number is not available. I want exactly the same simple option. How can I get that?