XP/VIsta Switching between 3g Mobile accounts

A technical question:

System: Windows XP/Vista

I travel a lot and have 2 3g dongles/providers -

One from say from Vodafone UK
One from say Vodafone Portugal

Each dongle is tied to the indvidual sim/provider and is blocked.

Can I configure dial-up software in XP to recognise each individual dongle when I plug it in, instead of having to reconfigure it each time I switch accounts.

Any thoughts would be useful.

Thanks