apt-get install ppp hostmode-gui
/dev/ttyUSB0 hide-password noauth connect "/usr/sbin/chat -v -f /etc/chatscripts/cdma" debug 115200 defaultroute noipdefault user "YOUR_NAME@ISP" usepeerdns persist nodetach
ABORT BUSY ABORT 'NO CARRIER' ABORT VOICE ABORT 'NO DIALTONE' ABORT 'NO DIAL TONE' ABORT 'NO ANSWER' ABORT DELAYED '' ATZ OK-AT-OK "ATDT#777" CONNECT \d\c
modprobe usbserial vendor=0x19d2 product=0xfff1 .... use your device's IDs here
pppd call cdma
apt-get install libicd-network-null