I was using one of the Huawei adapters on Ubuntu 8.10 with an eeePC. Installation could not have been easier. But we recently acquired a new dongle which turned out to be the ZTE is not natively unsupported.
Thanks to some handy notes here my task was made much easier. The steps I took were
A copy of the files and the script to install them are here jtztedongle but if you do download them you use them at your own risk.
The steps based on the information available here are shown below in the script I used.
#see notes at http://ubuntuforums.org/showthread.php?t=1017630
#should install required stuff to allow ZTE MF627 Broadband dongle as sold by
#3 in the UK to work on Ubuntu
#for later in the script I want todays date and time
#I downloaded usb mode switch
#1)install usb mode switch
dpkg -i usb-modeswitch_0.9.5_i386.deb
#first we’ll back up existing one
mv /etc/usb_modeswitch.conf /etc/usb_modeswitch.conf.jon.$the_date
cp usb_modeswitch.conf /etc/usb_modeswitch.conf
#3)Create udev ruls
cp 999-zte.rules /etc/udev/rules.d/999-zte.rules
cp 20-zte-mf628+.fdi /usr/share/hal/fdi/information/20thirdparty/20-zte-mf628+.fdi