Outbound Calling

I have completed the outbound calling ,but now i have to send the greetings like happy birthday when the user pick up the call.
Can any one let me know how to do it.

Google is your friend

Check out the A() argument in the Dial() application.

        x - The file to play to the called party
    Play an announcement to the called party, where <x> is the prompt
    to be played

Thank You For Ur Reply. That is what i needed . Thanks once again