Testing XBee

I am testing a XBee which is enable Arduino to do a wireless communication.
I build up circuit based on the information of Making Things Talk.

LED blinks.

The circuit works well but the commend on the book did not work some how.

I run PuTTY and did a serial connection

I typed

+++

And got a responce

OK

But the rest of commend did not work.


http://kousaku-kousaku.blogspot.com/2008/10/arduinoxbee-shieldprocessingxbee.html

This webpage is helpful but it is written in Japanese.

I typed

ATID

I got 

3332

Then I typed

ATBD

I got

3

3 means 9600bps

Useful information about commend

http://arduino.cc/en/Main/ArduinoXbeeShield

Serial Communication