If you have a Vodafone Internet Key and you don’t want to get crazy configuring it, use this really fine package: Vodafone Mobile Connect from Betavine Forge, a Vodafone Group R&D Lab.
It has nice features like:
statistics about transferred bytes (rx/tx)
sending SMS
choosing your preferred network settings (gprs, umts, preferred)
nice Python GUI
automatic detection of your Internet Key
(not [...]