diff --git a/fetapdtest.py b/fetapdtest.py
index ccb012d..101cacb 100644
--- a/fetapdtest.py
+++ b/fetapdtest.py
@@ -188,6 +188,7 @@ class DialingState(AbstractState):
 		return IdleState
 
 	def on_nummernschalter_active(self):
+		self._controller.abort_timeout()
 		if self.__dial_tone:
 			self._controller.get_phone().stop_playing()