hi rashmi , try the following steps and all should work
first connect the serial data cable to ur phone ,your mobile should give you an alert "data accessory connected" then connect the other end to the com port the open a terminal and type wvdialconf and press enter this will scan all the ports and will give you the port that you have connected the cable to if the data cable is connected then it will give you a string of similar to "AT ..." something if wvdialconf does not work try "wvdialconf wvdial.conf" once this in does type minicom in the terminal and press enter this will show you "initializing modem" after which you will see type CTRl-A Z for help keys which means type ctrl and a simultaneously and then z this will show you some options and the key used to select them in that go to modem and dialing in this there are 4 to 5 options select serial port and set it to ttyS0 cause default is ttyS1 below that there is some option i dont remember go to that it will ask for init String replace the string present with the string that you got when u ran wvdailconf now save this again run wvdialconf if the output is i have said then type the following in terminal "wvdailconf /etc/wvdial.conf" this will save your settings to wvdial.conf in /etc now if you run wvdial you again get the string you got earlier if u directly run wvdial in the beginning itself then you will get a error "no default set for /dev/modem" after this is properly working go to the gw folder to start your bearerbox important points 1)your cell phone must show data accessory connected 2)always first connect cable to cell phone and then the com port 3)for the first time change the minicom settings and save configuration to /etc the wvdial.conf file differs from system to system if you are from mumbai mail me your number ,i will call you when i am on working on kannel bye -- View this message in context: http://www.nabble.com/trying-to-open-device-with-not-closed-device%21%21%21-t1325051.html#a3655428 Sent from the Kannel - User forum at Nabble.com.