Debug output on file playing

phoneinterface.py

@@ -125,6 +125,7 @@ class PhoneInterface(object):
         self.__core.stop_ringing()
 
     def __play_file(self, filename, length, continous=False):
+        print 'Playing file:', filename
         self.__playing = True
         t = threading.Thread(target=self.__play_loop_thread, args=(filename, length, continous))
         t.start()