With that ID it's already in modem mode, just make sure the serial driver is fired up and understands the id and you should get a ttyUSB0 with any luck.

Edit: the dial string and login info rather depends on your provider. 3 UK were happy to provide that info to me, so you may be in luck with them. I have been successful using 3 with gentoo on my laptop, but have the sim in a phone via bluetooth for N800 access.