Truth is, it’s a piece of cake. First things you need to know:

Your modem is just that — a modem, and it is connecting like any dialup modem.

Dialup number: #777
Username: xxxxxxxxxx@vzw3g.com (replace xxxxxxxxxx with you 10-digit phone number associated with your modem)

Plug your UM150 into your USB port. Ubuntu should detect it as /dev/ttyACM0

Now, simply run “sudo wvdialconf”

It will detect your modem and do pretty much all the configuration.

Edit /etc/wvdial.conf — put in the appropriate phone number, your username, and anything as the password (I used “abcd”).

Now, run “wvdial”

and you’re golden. Good luck!