gsm module(MOD 9001 BENQ GSM/GPRS Modem) interfaced with 8051

i am using MOD 9001 BENQ GSM/GPRS Modem..
i tried this modem using hyperterminal for the following specification
baud rate-115200
databits-8
parity-none
stop bits-1
flowcontrol-none

using the AT command but it does not respond..i also tried with different baud rates like 9600,4800 but still doesnt respond...
i am attaching the manual for the same...please check and let me know...thanks

Have you set the jumper in the module for RS232 voltages?
Are the LED's flashing?