xbee response for AT commands only OK

Hello Everyone
I tried to get rssi value with the help of microcontroller....this is my code

#include <SoftwareSerial.h>
uint8_t ssRX = 8;
// Connect Arduino pin 9 to RX of usb-serial device
uint8_t ssTX = 9;
// Remember to connect all devices to a common Ground: XBee, Arduino and USB-Serial device
SoftwareSerial nss(ssRX, ssTX);


char inputString[20] = "";         // a string to hold incoming data
boolean stringComplete = false; 
static int i=0;

void setup() {
  Serial.begin(9600);
   nss.begin(9600);
  }
  
  
void loop()
{
  nss.print("Hello");
  Serial.print("Hello");
  delay(2000);
   Serial.print("+++");
   delay(2000);
     //if(!strcmp(inputString,"OK"))
     //{
       i=0;
        inputString[0]='\0';
       Serial.println("ATDB\n");
       i=0;
        inputString[0]='\0';
       Serial.println("ATMY\n");
       i=0;
        inputString[0]='\0';
       Serial.println("ATDL\n");
     //}
      delay(5000); 
     nss.print("work"); 
     Serial.print("work");
   Serial.print(inputString);
 
   delay(2000);
   //delay(5000);
   //Serial.print("bye");
    
}

void serialEvent() {
  while (Serial.available()) {
    // get the new byte:
    char inChar = (char)Serial.read(); 
    // add it to the inputString:
    inputString [i]= inChar;
    i++;
    nss.print(inChar);
    // if the incoming character is a newline, set a flag
    // so the main loop can do something about it:
      stringComplete = true;
    } 
  }

it is always showing me these value for software serial

HelloworkOK
OK
OK
OK
HelloworkOK
OK
OK
OK

i guess it shud show me some value for rssi---atleast 0 or some value for ATMY or ATDH.....
i am using only arduino uno and one xbees1......
plz help me ....