Crash asterisk with adhearsion

crash_asterisk.rb

#as soon as caller hangs up, asterisk goes down

cellphone_ivr {
	key = input 1, :timeout => 5.seconds, :speak => {:text => "You appear to be calling from the #{@calling_area} area; Press 1 if correct. Press 2 to enter zipcode.", :interruptible => true}
	if key == "1"
		speak "One moment please."
		+route_to_store
	elsif key == "2"
		+play_enter_zip_ivr
	else
		+cellphone_ivr
	end
}

no_crashy.rb

#add recursive limit

cellphone_ivr {
	@tries = @tries + 1
	key = input 1, :timeout => 5.seconds, :speak => {:text => "You appear to be calling from the #{@calling_area} area; Press 1 if correct. Press 2 to enter zipcode.", :interruptible => true}
	if key == "1"
		speak "One moment please."
		+route_to_store
	elsif key == "2"
		+play_enter_zip_ivr
	elsif @tries <= 3
		+cellphone_ivr
	else
		speak "Thanks for trying."
		hangup
	end
}