GSM Sketch

#include <SoftwareSerial.h>
char var = 0;

SoftwareSerial gsmSerial(2,3);

void setup()
{
    Serial.begin(9600);
    gsmSerial.begin(9600);
    Serial.println("Starting Communication...");
}

void loop() {
  if(gsmSerial.available() > 0){
    var = gsmSerial.read();
    Serial.print(var);
  }

  if(Serial.available() > 0){
    var = Serial.read();

    if(var == 't'){
      gsmSerial.print("AT\r");
    } else if(var == 'p'){
      gsmSerial.print("AT+CPIN=****\r");
    } else if(var == 'g'){
      gsmSerial.print("AT+CMGF=1\r");
    } else if(var == 's'){
      gsmSerial.print("AT+CMGS=+43*********\r");
      delay(100);
      gsmSerial.print("Hallo Welt :) \r");
      delay(10);
      gsmSerial.print("\x1A");
    } else if(var == 'x'){
      gsmSerial.print("AT+CMGL\r");
    }
  }
}