my modem cannot connect in ubuntu 12.10

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http://askubuntu.com – Need help in connecting modem in Ubuntu 12.10! how to connect vodafone usb stick modem in ubuntu 12.10. In ubuntu 11.10 it works, then I try in the same way in ubuntu 12.10 but it doesnt work. Do you have a solution? I am from Indonesia, I use sim card 3 as my provider. (HowTos)