Yes you can, the following instructions were posted to the Linux User Group Uganda Mailinglist. They are not final, and if you have questions about these instructions, the LUG mailinglist is the best place to find people that can and will support you with this. For more postings about CDMA on linux, you can search their archive .
If you're using a HUAWEI modem - such as MTN's YelloLine, you need to get the USB-serial dongle working with Linux.
Newer versions of Linux use Hal & UDEV to handle devices and getting the modem in a state where your distro "sees" the modem is a simple 2-step process.
1. Edit /etc/udev/rules.d/50-rules and add the following line:
SUBSYSTEM=="usb", ACTION=="add", ENV{PRODUCT}=="451/3410/*", RUN+="/etc/udev /scripts/ti_usb_3410_5052.hotplug %p"
2. Copy the attached script to /etc/ udev/scripts/ti_usb_3410_5052.hotplug
Voila. When you plug in, your modem is seen as /dev/ttyUSBX (usually ttyUSB0)
Configure using your favourite tool - kppp, wvdial, etc.
3. (optional)
If you like your /dev/modem to be a permanent soft-link, then edit /etc/udev/static_devices.txt and add
modem l ttyUSB0
That's an L, not a ONE.

