I am using MTS datacard. I have usb_modeswitch installed and have configured the wvdial.conf file. When I do sudo wvdial cdma, the IPs and DNS addresses are also allocated but I still cant access internet. The reply to dmesg | grep -e 'tty' -e 'modem' is:

[ 0.000000] console [tty0] enabled

[ 11.098238] USB Serial support registered for GSM modem (1-port)

[ 11.098352] option 6-1:1.0: GSM modem (1-port) converter detected

[ 11.102170] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB0

[ 11.102207] option 6-1:1.1: GSM modem (1-port) converter detected

[ 11.102334] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB1

[ 11.102364] option 6-1:1.2: GSM modem (1-port) converter detected

[ 11.102488] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB2

[ 11.102522] option 6-1:1.3: GSM modem (1-port) converter detected

[ 11.102643] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB3

[ 11.102672] option 6-1:1.4: GSM modem (1-port) converter detected

[ 11.102793] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB4

[ 11.103074] option: v0.7.2:USB Driver for GSM modems

Can anyone tell me what shall I do?