How to configure gsm modem in Linux with gammu

Installation of Gammu Gsm-utils in Centos 6.4 32bit

Download required packages

gammu installation

 Wget http://sourceforge.net/projects/gammu/files/gammu/1.31.0/gammu-1.31.0.tar.gz
 Tar-xzvf gammu-1.31.0.tar.gz
 Cd gammu-1.31.0
. / Configure
 Make install

Install other required packages

# yum install eject

# yum install comget  ( if you are not able to install comget from yum command
follow follow the process mentioned below.

 wget http://kaz.dl.sourceforge.net/project/comgt/comgt/0.32/comgt.0.32.tgz
 make
 make install

process to configure gsm modem 

#  insert gsm modem in usb port
# check usb port for gsm modem

# dmesg | grep tty
# ls -l /dev | grep '\->'  ( command to check the modem port connected to.)

# note gsm modem are detected as cd - rom in linux because the modem contains memory card slot ....

# eject /dev/sr0 or sr1  ( use this command to eject the cd-rom sr0 & sr1 as per your condition)

# comgt -x -d /dev/ttyUSB2  ( command to connect gsm modem to usb port, USB2 in my case)
# when modem is connected you will get the message with service provider name)

#   ln -s /dev/ttyUSB2 /dev/modem ( create symbolic link to /dev/modem)

# Gammu configuration 

gammu-config

port /dev/ttyUSB2 

connection at  

# gammu --identify ( if your connection is successful you will get the message as below)

Device               : /dev/ttyUSB2

Manufacturer         : PROLiNK CORPORATION

Model                : unknown (PHS101)

Firmware             : BD_P679M1V1.0.1B18

IMEI                 : 353907041******

SIM IMSI             : 42902001*****

# Test your device by sending sms with command line 

echo " Test Gsm Modem by nerazan" | gammu --sendsms TEXT +9779855022***

                                                                                                     Nerazan Adhikary