i have bought 1 gsm modem with cytron b4 dis. now im having problems in doing the setting of d modem. i try to connect from pc to gsm modem. once the power on, red led will on while green led will blinking. i follow all the setting given in the manual but after set up the hyperterminal, my gsm modem is not functioning after i wrote AT. nothing comes out. suppose 'OK' will come out once I enter the AT . so, hope the engineer can solve my prob.
2) in hyperterminal, what is the area code for msia ?