Dec
05
Posted on 05-12-2008
Filed Under (General information) by Arun Bagul

1] What is modem?

Modem (modulator-demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. There are different types of modem available like Cable modems, ADSL modems, Optical modems and USB cellular modems.

2] USB cellular modems ?

USB (Universal Serial Bus) cellular modems use a USB port instead of a PCcard or PCMCIA Card (Personal Computer Memory Card International Association) slot. Difference between a cellular router and a cellular modem is that a cellular router normally allows multiple people to connect to it, while the modem is made for one connection. A cellular router may or may not have an external datacard

NOTE- I am using  SXC-1080 CDMA 1x USB MODEM modem (Epi Valley)

3] How to use it ?

Please refer the article http://www.indiangnu.org/2008/tata-indicom-datacard-huawei-cdma-on-linuxubuntu/ for more information. most of the steps are same…

** On Ubuntu Linux use “wvdialconf” command to generate configuration file and add user name and few other options as given below…

root@arun:/home/arunsb# wvdialconf

** My wvdial configuration file…

root@arun:/home/arunsb# cat   /etc/wvdial.conf

[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = USB Modem
Baud = 460800
New PPPD = yes
Modem = /dev/ttyACM0
+FCLASS = 0
ISDN = 0
Phone =#777
Username = internet
Password = internet
# IMP setting
stupid mode = 1
root@arun:/home/arunsb#

** HOW to start / establish connection ?

root@arun:/home/arunsb# /etc/init.d/tataindicom
Usage: /etc/init.d/tataindicom {start|stop|status}
root@arun:/home/arunsb# /etc/init.d/tataindicom  start
Starting the TATA Indicom datacard service..
log file is /var/log/tataindicom.log

Done.
root@arun:/home/arunsb#

** Once connection is establish , you can verify the ppp0 interface and  route as shown below….

arunsb@arun:~$ ifconfig
….
……

ppp0 Link encap:Point-to-Point Protocol
inet addr:219.XX.XX.XX  P-t-P:172.XX.XX.14  Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1400  Metric:1
RX packets:31259 errors:124 dropped:0 overruns:0 frame:0
TX packets:32249 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:23928690 (22.8 MB)  TX bytes:4880834 (4.6 MB)

arunsb@arun:~$

root@arun:/home/arunsb# route -n

…..

** Want to see the “/etc/init.d/tataindicom” file?

root@arun:/home/arunsb# cat  /etc/init.d/tataindicom
#!/bin/bash
####
## daemon:: /usr/sbin/pppd  9600 modem crtscts defaultroute usehostname -detach user internet noipdefault call wvdial usepeerdns idle 0 logfd 6
####
case “$1″ in

start)
echo “Starting the TATA Indicom datacard service..”
check=$(ps auxwww | grep “$(which wvdial)” | grep -v grep | awk  ‘{print $2}’)
if [ -z "$check" ];then
/usr/bin/wvdial > /var/log/tataindicom.log 2>&1  &
echo “log file is /var/log/tataindicom.log”
echo “…”
echo “Done.”
else
echo “TATA Indicom datacard service already running [pid = $check]”
fi
;;

stop)
echo “killing pppd daemon and dailer…”
kill -9 $(ps auxwww  |  grep “$(which wvdial)”  | grep -v grep | awk  ‘{print $2}’)
kill -9 $(ps auxwww  |  grep “$(which pppd)”  | grep -v grep | awk  ‘{print $2}’)
echo “…”
echo “Done.”
;;
status)
echo “TATA Indicom datacard -”
pid_of_dailer=$( ps auxwww  |  grep “$(which wvdial)”  | grep -v grep | awk  ‘{print $2}’)
pid_of_pppd=$(ps auxwww  |  grep “$(which pppd)”  | grep -v grep | awk  ‘{print $2}’)
pppd_details=”$(ps auxwww | grep “$(which pppd)” | grep -v grep   | awk -F’pppd’  ‘{print $2}’)”
echo -e “Dailer $(which wvdial) : $pid_of_dailer”
echo -e “pppd daemon $(which pppd) :: $pid_of_pppd   $(which pppd) $pppd_details”
;;
*)
echo “Usage: /etc/init.d/tataindicom {start|stop|status}”
exit 1
esac
exit 0
#DONE
root@arun:/home/arunsb#

**  Enjoy buddy!!!

Thank you,
Arun Bagul

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Comments

vimal panchal on 19 December, 2008 at 8:15 pm #

i have purchase a device from tata., but speed is not for use a net, if you have a any software for this device update pl. send me by my mailid., my purchase date is 30/12/2007. it is under warranty. pl.do the needful as early as possible.


mathuri on 25 May, 2009 at 1:47 pm #

i have lost the software of tata indicom epi valley so plz tell me how and from where can i download the same?


Arun Bagul on 1 June, 2009 at 3:53 pm #

Hi Mathuri,

Please download software from Tataindicom site…

http://www.tataindicom.com/t-business-internet-plug2surf-dialer.aspx


shaheena on 6 August, 2009 at 10:01 pm #

I have tataindicom usb modem so please give me the information about connecting telephone and make calls through it? is their any option for that


Rkg on 6 September, 2009 at 8:55 pm #

I have got a new wireless broadband connection from Tata Indicom in Kolkata,India. Tata Indicom has provided me an Evdo modem, model Epivalley SEC-8089. While using this modem, I have faced severe incompatability and troble across various Laptops. While trying to install on Dell D620 with Windows XP SP3 installed, the modem could not be installed because on plugging in USB port the device is being registered as unknown USB device and does not show in Explorer. Device manager shows it as mass storage device. I could not locate the driver for this device, despite my searches on various resources on internet.

Now I was trying to use it on another laptop make Toshiba Model Satellite A105-S4254 with Windows XP SP3 Media Centre installed. Here the behavior is also same, initially. While plugging in other available USB port, suddenly the device got detected on one port and Epivalley device drivers viz. Composite device, Modem driver etc. got installed along with the photon plus dialer software. I could use internet until I have rebooted the system. After rebooting, I could not make the device detected on any of the port available. I did not see the device being registered as composite device in device manager,either. All the time it shows as USB device and cannot be seen in explorer as removable storage as well.

May I request you to help me in fixing this issues by provoding and updated patch or driverset?


Ameya on 29 September, 2009 at 11:51 am #

Kudos!
this is good article for newbies Arun. great work. Some suggestions.
If you see tata-indicoms dialer for windows you can find the current as well as monthly/total logs for net connection. It would be of great help if you can write such script to collect logs.

Regards,
Ameya


Dhaval Thakar on 29 September, 2009 at 2:44 pm #

Great !!

This is great article.
Great job arun.

Regards,
Dhaval Thakar


Biplab Ghosh on 8 October, 2009 at 12:27 am #

Anybody configured TATA Indicom photon+ in Fedora-11 + Sony vaio Z series??


anil v parmar on 22 May, 2010 at 5:05 pm #

tata cdma 1x usb monday driver link


sojitra david on 10 September, 2010 at 2:14 pm #

tata cdma 1x usb modem driver link


carlos dada on 26 September, 2010 at 6:34 pm #

por favor ajudei-me!eu tenho instalado no meu laptop o sistema operativo linux,e tenho um modem usb epivalley model sec-8089.como posso instalar este modem para que foncione com o linux?


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