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hi aratti

This command do not work in simcom sim300c module.

Gives an error message.

I need to know the AT command to access and browse the SIM menu.
There are some push pull services given by the mobile operator. So how i can access the menu by the help of AT command or any other...

Hi aratti , Can you please give me a schematic for connecting SIM300CZ (www.sim.com) and pic 16F877A. mainly the Tx Rx line

Hi aratti . Thanks for your help. I have solved it.
Can you please inform me one more thing, When any new sms arrived, the GSM modem send a notification " +CMTI: "SM",5 " .

How i can use this...

sms index 1,2,3,4 are used to store the emergency sms. These sms are used to notify the user .

I am using sim300CZ gsm module and pic16f877 for my project.

Is it possible to make any hardware interrupt when any new sms arrived??

thanks in advanced

SerOut2 txd,Baud,["at+cmgr=5",13]
SerIn2 rxd,Baud,500,delet_sms,[wait ("+8801717101959")]


I just read sms memory index 5, and check the sender no by waiting the phone no [wait...

when i try to read sms 5 then I am waiting for the user no "8801717101959"
then this code is fine




SerOut2 txd,Baud,["at+cmgr=5",13]
SerIn2 rxd,Baud,500,delet_sms,[wait ("+8801717101959")]

Send directly

at+cmgl="rec unread"