At first it may seem that connecting this modem in linux is going to take a whole lot of effort, but that's not the correct impression at all. Once you are accustomed with this, you will find it a whole lot easier than connecting it in windows. I assume you are surprised, if you are not accustomed with this yet.

Here are the things that need to be done:

#1. Two softwares that are needed:

1. usb-modeswitch

it's installed by default in Linux Mint

2. wvdial

it's not installed by default in LM, you have to install it through software manager. Or if you want to install them by manual download then you need to download the following packages:

libwvstreams4.6-base

libwvstreams4.6-extras

libuniconf4.6

wvdial

download them from ubuntu repository in .deb format. keep them together in a folder. go to that folder & right click anywhere in that folder and select run in terminal (or enter command in terminal: cd path_to_the_folder). then enter this code:

sudo dpkg -i *.deb

#2. Now only one thing needs to be done:

open a terminal and run this code:

sudo modprobe usbserial vendor=0×19d2 product=0×fff1

if this runs without any error then it's done. You can connect your modem through network manager now, as other mobile broadband modems.

Using the network manager:

It takes some time to appear the "mobile broadband" option in network manager (for zoom ultra, it may take upto 3minutes max). So be patient and wait for it to appear in the network seetings window. When it appears click on it and you will see another option at right which says "new connection" or stays blank, click on it twice and it will present you with another window in which you will need to do some basic stuff like next/continue but meanwhile you will need to choose your country and operator name, every other things will be set up automatically.

every time you reboot you just need to click the network icon in the panel and select the connection name that shows your operator name or whatever name you gave to it in the installation process.