diff --git a/config.py.sample b/config.py.sample
index 9db6772..a460163 100644
--- a/config.py.sample
+++ b/config.py.sample
@@ -5,6 +5,7 @@ smssize = 160
 smstemplate = "Nouveau mail de %s. Object %s. Message ..."
 smsformat = "ascii"
 
-mailboxes = "/home/paul/PycharmProjects/smsgateway/mailbox.csv"
+mailboxes = "mailbox.csv"
 
 pidfile = "/run/lock/smsgateway.pid"
+log = True
diff --git a/smsgateway.py b/smsgateway.py
index c90acd6..6d354bf 100755
--- a/smsgateway.py
+++ b/smsgateway.py
@@ -8,11 +8,20 @@ import telnetlib
 import config
 import fcntl
 import sys
+import datetime
 
 from email.header import decode_header
 from messaging.sms import SmsSubmit
 
 
+def log(message, level = 'INFO'):
+    if config.log:
+        date = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+        print ("%s [ %s ] %s" % (date, level, message))
+
+    return True
+
+
 def csv_config_parser(mailboxes):
     """
     Reads CSV config, returns as a list
@@ -85,7 +94,7 @@ def clear_all_sms():
             tn.read_until("\r\n")
         tn.close()
     except:
-        print("Unexpected error:", sys.exc_info()[0])
+        log(("Error clear sms %s" % sys.exc_info()[0]), 'ERROR')
         raise
 
 
@@ -144,16 +153,26 @@ def imap2sms(conf):
             for mail in mails:
                 sender = mail[0]
                 subject = mail[1]
-                if config.smsformat == "pdu":
-                    sms = resize_pdu_sms(sms_template(sender, subject))
-                    pdustring, pdulength = pduformat(number, sms)
-                    send_pdu_sms(pdustring, pdulength)
-                elif config.smsformat == "ascii":
-                    sms = resize_ascii_sms(sms_template(sender, subject))
-                    send_ascii_sms(number, sms)
+                send_sms(number, subject, sender)
 
 
-def pduformat(phonenumber, message):
+def send_sms(number, subject, sender):
+    if config.smsformat == 'pdu':
+        sms = resize_pdu_sms(sms_template(sender, subject))
+        pdustring, pdulength, phonenumber, message = pdu_format(number, sms)
+        send_pdu_sms(pdustring, pdulength)
+        log(("Message sent to %s with text %s using PDU method" % (number, message)))
+        return True
+    elif config.smsformat == 'ascii':
+        sms = resize_ascii_sms(sms_template(sender, subject))
+        send_ascii_sms(number, sms)
+        log(("Message sent to %s with text %s using ASCII method" % (number, sms)))
+        return True
+    else:
+        return False
+
+
+def pdu_format(phonenumber, message):
     """
     Formats SMS using pdu encoding
     :param phonenumber: Phone number to insert in pdu
@@ -164,13 +183,10 @@ def pduformat(phonenumber, message):
     pdu = sms.to_pdu()[0]
     pdustring = pdu.pdu
     pdulength = pdu.length
-    # debug output
-    # print(phonenumber, message)
-    # print(pdu.length, pdu.pdu)
     return pdustring, pdulength, phonenumber, message
 
 
-def send_ascii_sms(phonenumber, sms, phonenumbre, message):
+def send_ascii_sms(phonenumber, sms):
     """
     Send SMS using telnetlib, returns exception when issues with telnet communication
     :param phonenumber: Phone number to insert in pdu
@@ -195,13 +211,12 @@ def send_ascii_sms(phonenumber, sms, phonenumbre, message):
         tn.write("%s\x1A" % decoded_sms)
         tn.read_until("+CMGS")
         tn.close()
-        print ("SMS send to telnet to %s with message %s" % phonenumber, message)
     except:
-        print("Unexpected error :", sys.exc_info()[0])
+        log(("Error when send SMS with Telnet: %s" % sys.exc_info()[0]), 'ERROR')
         raise
 
 
-def send_pdu_sms(pdustring, pdulength, phonenumber, message):
+def send_pdu_sms(pdustring, pdulength):
     """
     Send SMS using telnetlib, returns exception when issues with telnet communication
     :param pdustring: is the converted sms to pdu format
@@ -225,9 +240,8 @@ def send_pdu_sms(pdustring, pdulength, phonenumber, message):
         tn.write("%s\r\n\x1A" % pdustring)
         tn.read_until("+CMGS")
         tn.close()
-        print ("SMS send to telnet to %s with message %s" % phonenumber, message)
     except:
-        print("Unexpected error:", sys.exc_info()[0])
+        log(("Error when send SMS with Telnet: %s" % sys.exc_info()[0]), 'ERROR')
         raise
 
 
@@ -254,7 +268,7 @@ try:
     fcntl.lockf(fh, fcntl.LOCK_EX | fcntl.LOCK_NB)
 except IOError:
     # another instance is running
-    print 'Error: Another instance is running...'
+    log("Error: Another instance is running...", 'ERROR')
     sys.exit(0)
 
 if len(sys.argv) > 1:
@@ -265,11 +279,11 @@ if len(sys.argv) > 1:
         if len(sys.argv) == 4:
             phonenumber = sys.argv[2]
             sms = sys.argv[3]
-            pdustring, pdulength, phonenumber, message = pduformat(phonenumber, sms)
             if config.smsformat == "pdu":
-                send_pdu_sms(pdustring, pdulength, phonenumber, message)
+                pdustring, pdulength, phonenumber, message = pdu_format(phonenumber, sms)
+                send_pdu_sms(pdustring, pdulength)
             elif config.smsformat == "ascii":
-                send_ascii_sms(phonenumber, sms, phoneumber, message)
+                send_ascii_sms(phonenumber, sms)
         else:
             print(usage())
 
@@ -279,6 +293,10 @@ if len(sys.argv) > 1:
 
     elif sys.argv[1] == "debug":
         print debug()
+
+    else:
+        print(usage())
+        exit(1)
 else:
     print(usage())
     exit(1)