diff --git a/phoneinterface.py b/phoneinterface.py
index fece6cd..2627541 100644
--- a/phoneinterface.py
+++ b/phoneinterface.py
@@ -11,12 +11,13 @@ RINGBACK_TONE = 'weckzeichen.wav'
 class PhoneEvent(object):
     RegInProgress,\
     RegSuccessfull,\
+    RegReset,\
     CallIncoming,\
     CallRinging,\
     CallAccepted,\
     CallEnded,\
     CallBusy,\
-    CallInvalidNumber = range(8)
+    CallInvalidNumber = range(9)
 
     @classmethod
     def string(cls, val):
@@ -58,6 +59,8 @@ class PhoneInterface(object):
             evt = PhoneEvent.RegInProgress
         elif state == linphone.RegistrationState.Ok:
             evt = PhoneEvent.RegSuccessfull
+        elif state == linphone.RegistrationState.None:
+            evt = PhoneEvent.RegReset
 
         if evt is not None:
             for cb in self.__event_cbs: