Gsm modem interfacing with lpc2148

When I connect gsm with lpc 2148 I am not receiving any response from gsm. Program is correct I have seen it's output on hyperterminal.what can be the problem please help me.
GSM modem interfacing with 89c51

I am able to send msg through GSM modem. But i am not able to read msg. Somebody plz help me.
GSM modem interface with STR912

Hi I want to connect GSM modem to the STRE912 board I configured the uart which can recieve interrupt from modem I am using uart 0 for connecting the modem and uart 2 to debug the application but the...
Gsm modem interfacing with lpc2148

When I connect gsm with lpc 2148 I am not receiving any response from gsm. Program is correct I have seen it's output on hyperterminal.what can be the problem please help me.
GSM modem interface with STR912

Hi I want to connect GSM modem to the STRE912 board I configured the uart which can recieve interrupt from modem I am using uart 0 for connecting the modem and uart 2 to debug the application but the...