Sending Message to Hangout

Hello,

I want to send message to gmail account from openfire account.

I am able to send message from my domain to other domain after setting some property in system.

I can send presence and get presence from gmail account but and also able to send and receive message after logged in gmail account from smack api.

but in hangout application it is still showing “invitation has been pending and you can send message once after accepted”. I had also send subscribed presence and able to set subscription both in roster list of gmail account but it is still showing as request in pending stage.

Does any one know how can i send message from openfire acc to hangout or how to accept hangout request from openfire account?

i am posting some snap shot for your refrence

Please help