This is how you can check if the driver was loaded properly:
Type dmesg and check the end of the output you should see something that says the ti_usb_3410 driver was loaded successfully.
ti_usb_3410_5052 2-1:2.0: TI USB 3410 1 port adapter converter detected
You can also check that the driver was loaded by using lsmod. The dmesg output should also tell you the USB serial port that the driver has bind itself to. (Usually /dev/ttyUSB0)
# lsmod|grep ti_usb_3410
Also make sure that the proper ppp modules have been loaded, or else you will notice that the dialer will not be able to connect to the ISP.
# lsmod|grep ppp
To connect, I'd recommend using wvdial with stupid mode. I'm not sure if any other dialers support the stupid mode. Create the wvdial.conf script as follows.
# vi /etc/wvdial.conf
Init = ATZ
Modem = /dev/ttyUSB0
Phone = #777
Baud = 230400
Init1 = ATZ
Stupid Mode = 1
Dial Command = ATDT
Username = your_user_name
Password = your_password
Your ready to dial.
# wvdial BellNet
At this point, I find that sometimes the driver is unable to activate the phone's modem unless you pick up the handset and set it down. This isn't always the case but most of the time wvdial gives up because it doesn't get any respose from the modem.
If by any chance you are having trouble with the driver when you look at the dmesg output then usually upgrading the kernel to the latest should help. Otherwise you could try downloading the old driver for 2.6 and installing it manually (you need to have the kernel source)