how does remote_dispo.php work?

how do i use remote_dispo.php for the remote agents? do i jsut go to the url or how do i use it?
VICIDIAL astGUIclient discussion forum
http://forum.eflo.net/VICIDIALforum/
http://forum.eflo.net/VICIDIALforum/viewtopic.php?f=4&t=6070