the following i did to connect my motorola L6 with Fedora core 6(ZOD)
First identify your phones AT vendor id and Product id.
using root privilege type the following.
/sbin/modprobe usbserial vendor=0x
next type the following
you will get a output as shown in figure.
now type the following.
Modem = <>
Baud = 460800
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ISDN = 0
Modem Type = Analog Modem
Phone = *99***1#
Username = A
Password = B
Stupid Mode = 1
now save and exit
and the shell run the command
you will get an output showing yor local ip,primary DNS ,secondary DNS,and modem type( analog)
..now open your browser and enjoy...
NB: there are so many articles written as a solution to problem of connecting GPRS in linux. A decent googling will surely lead you to the most appropiate solution. Still this is a try to resolve this problem.