how to recieve message from sim900 GPRS modem on hyperterminal?

[Bharathi1]

hi everybody,,
i am using below commands to send and receive sms using sim900 GPRS modem.. but i can able to send messages from hyperterminal.. but if i send message from my phone to MOdem i am unable to see those messages.. so pls help me to get out from this problem...: :roll: :roll: :roll: :roll: :roll: :roll:

AT+CMGF=1
OK
AT+CMGS="+91xxxxxxxxx"
>hi
AT+CMGR=1
OK
AT+CMGL="ALL"
OK
AT+CNMI?
+CNMI=0,1,0,0,0
AT+CMPS?
+CPMS "SM" 0,20 "SM" 0,20 "SM" 0,20 "SM" 0,20

i am giving above commands to receive sms .. pls help me is there any different commands for sim900 separately?

 

[themask]

set AT+CNMI=3,1,0,0,0

so that the modem will send the unsolicited code when it received an SMS