Programming :: SSH Remote To Local Chat?

I have the need to SSH into a Slackware 12 box to provide remote support. I got this, but it doesn't provide for a real 2-way communication.

while : ;
do read -p "Enter text to Local: " TXT ;
DISPLAY=:0 Kdialog --inputbox "$TXT" ;
done

So this loops and all, but it doesn't have a history and I have to wait for a return from the Local operator. If the operator has changed focus I can be waiting all day for a response and I would have to start another session to post a second comment.

What is nice is that it's small and I can create the .sh when I remote in.

-----Update since I started

I now have two scripts to take over from the first one. I have to have 4 SSH running to get this to work.

1 SSH to move(archive) and create a chat.txt; it also fires off a .sh that fires off a console that tails a chat.txt so the operator can see the chat history
2nd SSH to fire off a .sh that loops a Local kdialog input box that appends the chat.txt 3rd SSH to tail -f the chat.txt file on the remote so I can see the chat history 4th SSH to loop a read -p on the SSH so I can append the chat.txt