发送短信到动态分配号码。 （sim 908 + 89v51rd2）

Question

我正在尝试将短信发送到动态分配的电话号码。 为此，我使用sim908模块和89v51rd2控制器。 我只是在超级终端上获得AT + CMGS = 976“。之后我无休止地获得垃圾值。 这是我的代码： -

#include <reg51.h>
#include <stdio.h>

sbit BIT1 = P1^0;
sbit BIT2 = P1^1;

char phone_number1[13]= "+919767504200";       // swapnil
char phone_number2[13]= "+919762583395";                // rashmi
char msg1[10] = "HELLO";
char msg2[10] = "SNSYSTEM";


char aux_string[20];
void delay_ms(unsigned int);
void send_sms(char[],char[]);


void serial_init() {
    SCON=0x50;              //setup for 8-bit data
    TMOD=0x20;              //setup timer 1 for auto-reload
    TH1=0xfd;               //Baud Rate 9600
    TR1=1;                      //turn on timer 1
    TI=1;                           //indicate ready to transmit
}

    void send_serial(unsigned char *s){
        while (*s != 0x0){

                SBUF = *s;
                while (!TI){
                    //send_serial("hiii\n");
                }
                TI = 0;
                s++;
            }
        }

        void main(){
            BIT1 = 1;
      BIT2 = 1;
            delay_ms(800);
            serial_init();                                           //Initialize Serial port.

            if(BIT1 == 1){

                send_sms(phone_number1,msg1);
            }

            else if(BIT2 == 1){

                send_sms(phone_number2, msg2);
            }
            else{
                                                                send_serial("checkpinstatus\n");
            }
    }

void delay_ms(unsigned int iTime){
    unsigned int i,j;
    for(i = 0 ; i < iTime ; i++)
        for(j = 0 ; j < 1275 ; j++);
}

void send_sms(char phone_number[],char msg[]){
        send_serial("AT\r");
        delay_ms(400);
        send_serial("AT+CMGF=1\r");
        delay_ms(400);
        sprintf(aux_string,"AT+CMGS=\"%s\"", phone_number);
      send_serial(aux_string);
      send_serial("\r");
        delay_ms(400);
        send_serial(msg);
      send_serial("\r");
        delay_ms(400);
        send_serial("0x1A\r");  

}