ZapRAS - how to

Hi all,
I’m having 2 systems with Digium card, which has E1 PRI line connected.
Now I want to setup, ZapRAS b/w these 2 systems.
I’m using ubuntu and Lenny, with astersk 1.4.21.2.
I’ve gone through the page " voip-info.org/wiki/view/Asterisk+cmd+ZapRAS ".
But I was not clear on what steps to do.

Is anyone setup ZapRAS alreay!! Is there some other documentation for that??

Please provide me some inputs.

you should use DahdiRAS …