How can Vicidial ingnor incoming calls

I would like to know how to properly make Vicidial ignore incoming calls on our PRI T1 line. I want it to be purely for outgoing only.
Thanks
Thanks
VICIDIAL astGUIclient discussion forum
http://www.vicidial.org/VICIDIALforum/
http://www.vicidial.org/VICIDIALforum/viewtopic.php?f=4&t=7884