diff --git a/icinga_host_notify.py b/icinga_host_notify.py
index eba3ef2..e7577e4 100755
--- a/icinga_host_notify.py
+++ b/icinga_host_notify.py
@@ -22,7 +22,7 @@ def main():
     logfile = "/opt/sms/sms.log"
     FORMAT = '%(asctime)-15s %(message)s'
     logging.basicConfig(format=FORMAT,filename=logfile,level=10)
-    logger = logging.getLogger('observiumsms')
+    logger = logging.getLogger('icingasms')
     
     # check param
     smsrcpt = os.environ.get('USERMOBILE')
@@ -43,6 +43,8 @@ def main():
         try:
             # Contact ModemManager, unlock SIM and send SMS to emergency numbers
             sms_functions.send_sms([ smsrcpt ], smsstring)
+        except sms_functions.SIMError as err:
+            logger.exception('SIM Error when sending SMS')
         except sms_functions.ModemManagerError as err:
             logger.error('Error when sending SMS: {0}'.format(e.value))
         else:
diff --git a/observium_sms.py b/observium_sms.py
index 8c63e48..7aef27c 100755
--- a/observium_sms.py
+++ b/observium_sms.py
@@ -1,9 +1,11 @@
 #!/usr/bin/python3
 
 import logging
+import time
 import os
 from pydbus import SystemBus
 from gi.repository import GLib
+from datetime import datetime
 import sms_functions
 
 def assemble_sms():
@@ -13,15 +15,39 @@ def assemble_sms():
     str_list.append("{}".format(os.environ.get('OBSERVIUM_DURATION')))
     return ''.join(str_list)
 
-# Setup logging
-logfile = "/opt/sms/sms.log"
-FORMAT = '%(asctime)-15s %(message)s'
-logging.basicConfig(format=FORMAT,filename=logfile,level=10)
-logger = logging.getLogger('observiumsms')
+def main():
+    # Setup logging
+    logfile = "/opt/sms/sms.log"
+    FORMAT = '%(asctime)-15s %(message)s'
+    logging.basicConfig(format=FORMAT,filename=logfile,level=10)
+    logger = logging.getLogger('observiumsms')
+    
+    # check param
+    smsrcpt = os.environ.get('USERMOBILE')
+    if not smsrcpt:
+        logger.error('No SMS number given')
+        raise Exception('No SMS number given for message')
+    
+    # Assemble SMS
+    smsstring = assemble_sms()
+    logger.info("Sending SMS: %s", smsstring)
+    
+    success = False
+    retries = 0
+    max_retries = 3
+    
+    while not success and retries < max_retries:
+        retries += 1
+        try:
+            # Contact ModemManager, unlock SIM and send SMS to emergency numbers
+            sms_functions.send_sms([ smsrcpt ], smsstring)
+        except sms_functions.SIMError as err:
+            logger.exception('SIM Error when sending SMS')
+        except sms_functions.ModemManagerError as err:
+            logger.error('Error when sending SMS: {0}'.format(e.value))
+            time.sleep(6)
+        else:
+            success = True
 
-# Assemble SMS
-smsstring = assemble_sms()
-logger.info("Sending SMS: %s", smsstring)
-
-# Contact ModemManager, unlock SIM and send SMS to emergency numbers
-sms_functions.send_sms(, smsstring)
+if __name__ == "__main__":
+    main()
diff --git a/sms_functions.py b/sms_functions.py
index 9be00d1..bdd6fed 100644
--- a/sms_functions.py
+++ b/sms_functions.py
@@ -24,13 +24,6 @@ class SIMError(ModemManagerError):
     def __str__(self):
         return repr(self.value)
 
-def assemble_sms():
-    str_list = []
-    str_list.append("Observium {}\n".format(os.environ.get('OBSERVIUM_TITLE')))
-    str_list.append("{} [{}]\n".format(os.environ.get('OBSERVIUM_ENTITY_NAME'), os.environ.get('OBSERVIUM_ENTITY_DESCRIPTION')))
-    str_list.append("{}".format(os.environ.get('OBSERVIUM_DURATION')))
-    return ''.join(str_list)
-
 def get_modem():
         # Retry for 5 seconds and give the modems time
         retries = 0