change extension_additon.conf [app-chanspy] include => app-chanspy-custom exten => 555,1,Authenticate(1234) exten => 555,2,Read(SPYNUM,extension) exten => 555,3,ChanSpy(SIP/${SPYNUM},q) ;old code ;exten => 555,1,Macro(user-callerid,) ;exten => 555,n,Answer ;exten => 555,n,Wait(1) ;exten => 555,n,ChanSpy() ;exten => 555,n,Hangup ; end of [app-chanspy]