If you ever have a reason to repeatedly dial and hangup on someone, here's a Skype way to do it.

SkypeRepeatDial.applescript

property ScriptName : "Repeat Call"
property PhoneToDial : "+15551234567"

repeat
	tell application "Skype"
		send command "CALL " & PhoneToDial script name ScriptName
		
		delay 10
		
		set activeCalls to send command "SEARCH ACTIVECALLS" script name ScriptName
		
		set activeCalls to characters 7 thru -1 of activeCalls as string
		set activeCallsList to words of activeCalls
		
		repeat with i from 1 to number of items in activeCallsList
			set callID to item i of activeCallsList
			send command "SET CALL " & first word of (callID as text) & " STATUS FINISHED" script name ScriptName
		end repeat
		
		delay 5
	end tell
end repeat