[App_rpt-users] shortcut to link and unlink

I am trying real hard to understand the function stanza,a and been able to do a few thing.. I have dtmf test and parrot working. But I want to have some shortcut to link and unlink my 2 nodes. here is a part of my rpt.conf file for the 29534 node. 600=cop,55 601=cop,32 603=ilink,3,29540 604=ilink,1,29540 both 600 and 601 function works ok. but 603 and 604 no go. What am I doing wrong?