[moved] problem with gsm based project

[balvendrajat]

hello i am balvendra choudhary
i made a gsm based project in which i used atmega32 A and gsm sim900. in which response of AT command is OK. when i calling it shows RING on display. during calling the status would be three but its not what is the problem. same code is working with sim300 what is the problem
i am writing code here

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#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "uart_lib.h"
#include "string.h"
#define Asize 30
unsigned char mob[10]="          ";
int index=0,a=0,b=0;
char A[Asize]="jfnnffkngpfmg",status=0,line=0;
ISR(USART_RXC_vect)
{
    char c=UDR;
        if(index<16)
            A[index]=c;
        index++;
        if (c==0x0A)
        {
            status|=1;
            index = 0;
            line=0;
            }
 
        else if(index == 5)
        {
                 if((strncmp(A,"+cmti",5) == 0))
                 {
                     status|=4;
                     line=1;
                     }
            else if((strncmp(A,"+clip",5) == 0))
            {
                status|=2;
                line=1;
                }
            else if((strncmp(A,"NO CA",5) == 0))
            {
                status&=~2;
                line=1;
                }
        }
        else if(index>11&index<22&(status>>1))mob[index-12]=c;
    }
int main(void)
{
 
    set_uartbaud(9600);
    enable_uart_rxcint();
    LCDinit();
    LCDclr();
    sei();
    _delay_ms(2000);
    _delay_ms(2000);
    _delay_ms(2000);
      _delay_ms(2000);
      _delay_ms(2000);
    sendstring_uart("AT\r\n");
    sendstring_uart("at+clip=1\r\n");
    _delay_ms(2000);
 
    while(1)
    {
        if(status==3)
        {
            _delay_ms(500);
            if(status>>1&(strncmp(mob,"**********",10) == 0))
                                        {
                                        _delay_ms(2000);
                                        _delay_ms(2000);
                                        _delay_ms(2000);
                                        _delay_ms(2000);
                                        sendstring_uart("ATH\r\n");
                                        _delay_ms(2000);
                                        status=1;
 
             }
        }
        LCDGotoXY(0,0);
            LCDstring(A,16);
            LCDGotoXY(0,1);
            LCDsendChar(status+48);
            LCDsendChar(30);
            LCDstring(mob,10);
    }
}

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[girish09]

Dear Balvendra,
How are you sending data using sim 900 ? As per my knowledge Each message received by SIM900 module is start with “+CMT” and after that it has the mobile number of the sender and at the end lies the body of the message.