Thank you so much for your reply and help.
I'm sorry if I was not clear with my question.
We already tried RS232 configuration in modem mode but RUT955 doesn't recognize AT commands which we need. Very short set of AT commands is supported in modem mode. Even D command is not working when we are connected to RUT955 with RS232 cable and use putty or hyperterminal.
Is it possible to go to user script and put our string there. Our string is ATE0&S1&D2X4S0=1+CBST=7,0,1, so we should write
gsmctl -A ATE0&S1&D2X4S0=1+CBST=7,0,1
Is it possible?
Can we use RUT955 instead of our GSM/GPRS modem Cinterion and AT commands from string above?
Thank you so much in advance.