Prova a vedere qui (in ordine di preferenza):
https://help.ubuntu.com/community/Di...to/Huawei/E220
https://help.ubuntu.com/community/Di...20/wvdial.conf
https://help.ubuntu.com/community/Di.../E220/GnomePpp
Huawei's hsdpa modem Model E220 - Ubuntu Forums
Configurare Vodafone Internet Box (huawei e220) su Ubuntu : Paolo Mainardi