diff --git a/run.py b/run.py
index b60ffc5..b3ebb29 100755
--- a/run.py
+++ b/run.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 import RPi.GPIO as GPIO
 import time
 import os
@@ -6,77 +6,59 @@ import sys
 import re
 import subprocess
 
-GPIO.setmode(GPIO.BCM)
-GPIO.setup(26,GPIO.IN, pull_up_down = GPIO.PUD_UP)
-GPIO.setup(21,GPIO.OUT)
-GPIO.setup(6,GPIO.IN, pull_up_down = GPIO.PUD_UP)
-GPIO.setup(20,GPIO.OUT)
-GPIO.setmode(GPIO.BCM)
-GPIO.setup(17, GPIO.OUT)
+PinForkIn = 12
+PinForkOut = 20
+PinDialIn = 26
+PinDialOut = 21
+PinWecker = 17  # Command Pin to turn on/off the relay.
+Hits = 10 # How many times should the bell be hit by the hammer?
+HitsSleep = 0.06 # Sleep between every hit.
+Dialcountdown = 500 # time until to dial the call in ms
 
-os.system('linphonecsh exit')
+
+GPIO.setmode(GPIO.BCM)
+GPIO.setup(PinDialIn,GPIO.IN, pull_up_down = GPIO.PUD_UP)
+GPIO.setup(PinDialOut,GPIO.OUT)
+GPIO.setup(PinForkOut,GPIO.OUT)
+GPIO.setup(PinForkIn,GPIO.IN, pull_up_down = GPIO.PUD_UP)
+GPIO.setmode(GPIO.BCM)
+GPIO.setup(PinWecker, GPIO.OUT)
+
+os.system('/usr/bin/linphonecsh exit')
 time.sleep(1)
-os.system('linphonecsh init')
+os.system('/usr/bin/linphonecsh init')
 time.sleep(1)
-os.system('linphonecsh soundcard playback')
+os.system('/usr/bin/linphonecsh soundcard playback')
 time.sleep(1)
-os.system('linphonecsh soundcard ring') 
+os.system('/usr/bin/linphonecsh soundcard ring') 
 time.sleep(1)
-os.system('linphonecsh register --username <Nummer> --host hg.eventphone.de --password <password>')
+os.system('linphonecsh register --username $(sed -n 1p /boot/sip.txt) --host $(sed -n 2p /boot/sip.txt) --password $(sed -n 3p /boot/sip.txt)')
 
 def wecker():
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-  GPIO.output(17, 1)
-  time.sleep(0.04)
-  GPIO.output(17, 0)
-  time.sleep(0.04)
-
+  for _ in range(Hits):
+    GPIO.output(PinWecker, 1)
+    time.sleep(HitsSleep)
+    GPIO.output(PinWecker, 0)
+    time.sleep(HitsSleep)
 
 def hangup():
-  FORK = GPIO.input(6)
+  FORK = GPIO.input(PinForkIn)
   if FORK == 1:
     os.system('linphonecsh generic terminate')
     time.sleep(0.0001)
   else:
-      GPIO.input(6)
+      GPIO.input(PinForkIn)
 
 def answer():
-  FORK = GPIO.input(6)
+  FORK = GPIO.input(PinForkIn)
   if FORK == 1:
     os.system("linphonecsh generic \"answer $(linphonecsh generic 'calls' | sed -n 4p | awk '{print $1}')\"")
     time.sleep(0.0001)
   else:
-      GPIO.input(6)
+      GPIO.input(PinForkIn)
 
 def dialnumber():                 
-  DIAL = GPIO.input(26)           
+  DIAL = GPIO.input(PinDialIn)           
   NOM = 0                         
   timeout = False                 
   countdown = 100                 
@@ -85,7 +67,7 @@ def dialnumber():
           countdown = countdown -1
         if DIAL != 1:             
           if NOM == 0:            
-            DIAL = GPIO.input(26) 
+            DIAL = GPIO.input(PinDialIn) 
           else:                   
             if NOM == 10:         
               print("0", end='')
@@ -96,27 +78,27 @@ def dialnumber():
         elif DIAL == 1:           
           NOM = NOM +1            
           time.sleep(0.109)       
-          DIAL = GPIO.input(26)   
-          countdown = 500         
+          DIAL = GPIO.input(PinDialIn)   
+          countdown = Dialcountdown         
           timeout = True          
 
 def CALL():
-  FORK = GPIO.input(6)
+  FORK = GPIO.input(PinForkIn)
   time.sleep(0.1)
   if FORK == 1:
-    FORK = GPIO.input(6)
+    FORK = GPIO.input(PinForkIn)
     time.sleep(0.0001)
-    RINGCHECK = 'linphonecsh generic \'calls\' | sed -n 4p | awk \'{print $5}\''
+    RINGCHECK = 'linphonecsh generic \'calls\' | sed -n 4p | awk \'{print $6}\''
     RINGVALUE = subprocess.check_output(['bash', '-c', RINGCHECK ]).decode().strip()
     if RINGVALUE == 'IncomingReceived':
       wecker()
-      FORK = GPIO.input(6)
+      FORK = GPIO.input(PinForkIn)
       time.sleep(0.0001)
     else:
-      FORK = GPIO.input(6)
+      FORK = GPIO.input(PinForkIn)
       time.sleep(0.0001)
   else:
-    FORK = GPIO.input(6)
+    FORK = GPIO.input(PinForkIn)
     CMD = 'linphonecsh generic "answer $(linphonecsh generic \'calls\' | sed -n 4p | awk \'{print $1}\')"'
     VALUE = subprocess.check_output(['bash', '-c', CMD ]).decode().strip()
     if VALUE == 'There are no calls to answer.':
@@ -129,13 +111,13 @@ def CALL():
       f.close()
       os.system('linphonecsh dial $(cat dial.txt)')
     else:
-      FORK = GPIO.input(6)
+      FORK = GPIO.input(PinForkIn)
       answer()
     while FORK == 0:
-      FORK = GPIO.input(6)
+      FORK = GPIO.input(PinForkIn)
       time.sleep(0.001)
     else:
-      FORK = GPIO.input(6)
+      FORK = GPIO.input(PinForkIn)
       hangup()
 
 while True: