diff --git a/call_manager.py b/call_manager.py
index 22b1fed..9296b29 100644
--- a/call_manager.py
+++ b/call_manager.py
@@ -10,16 +10,16 @@ OP_PING = 'PING'.encode()
 OP_OK = 'OK'.encode()
 OP_ERROR = 'ERROR'.encode()
 
-config = yaml.safe_load(open("intercom.yml"))
-
 class CallManager:
-    state = NO_CALL
-    station = None
-    call_process = None
+    def __init__(self, config):
+        self.config = config
+        self.state = NO_CALL
+        self.station = None
+        self.call_process = None
 
     def call(self, station):
         try:
-            self.call_process = subprocess.Popen(['parole', '-c', station['host'], '-d', config['audio device']])
+            self.call_process = subprocess.Popen(['parole', '-c', station['host'], '-d', self.config['audio device']])
             s = socket.socket()
             s.connect((station['host'], station['port']))
             s.send(OP_CALL)
diff --git a/intercom.py b/intercom.py
index fd5c396..fdd7306 100644
--- a/intercom.py
+++ b/intercom.py
@@ -10,7 +10,11 @@ from call_manager import CallManager, NO_CALL, INCOMING_CALL, OUTGOING_CALL, OP_
 
 CHECK_STATUS_INTERVAL = 120
 
-callManager = CallManager()
+
+config = yaml.safe_load(open("intercom.yml"))
+port = config['port']
+stations = config['stations']
+callManager = CallManager(config)
 
 
 def getstationbyip(ip):
@@ -70,10 +74,6 @@ def check_status(station):
         time.sleep(CHECK_STATUS_INTERVAL)
 
 
-config = yaml.safe_load(open("intercom.yml"))
-port = config['port']
-stations = config['stations']
-
 # Start thread to wait for incoming hang petitions.
 thread_listen = Thread(target=listen, args=(callManager,))
 thread_listen.daemon = True