diff --git a/modem/data_handler.py b/modem/data_handler.py
index 484502e1..8eb96168 100644
--- a/modem/data_handler.py
+++ b/modem/data_handler.py
@@ -41,12 +41,11 @@ class DATA:
 
     log = structlog.get_logger("DATA")
 
-    def __init__(self) -> None:
+    def __init__(self, config) -> None:
 
         self.stats = stats.stats()
 
-        # Initial call sign. Will be overwritten later
-        self.mycallsign = Station.mycallsign
+        self.mycallsign = config['STATION']['mycall']
         self.dxcallsign = Station.dxcallsign
 
         self.data_queue_transmit = DATA_QUEUE_TRANSMIT
@@ -3218,7 +3217,7 @@ class DATA:
         if not ARQ.arq_session:
             Modem.modem_state = "IDLE"
             self.dxcallsign = b"AA0AA-0"
-            self.mycallsign = Station.mycallsign
+            self.mycallsign = self.mycallsign
             self.session_id = bytes(1)
 
         ARQ.arq_session_state = "disconnected"
diff --git a/modem/main.py b/modem/main.py
index 2e44fb4e..fcde98f3 100755
--- a/modem/main.py
+++ b/modem/main.py
@@ -217,10 +217,10 @@ log.info(
 )
 
 # start data handler
-data_handler.DATA()
+data_handler.DATA(conf.config)
 
 # start modem
-modem = modem.RF()
+modem = modem.RF(conf.config)
 
 # start mesh protocol only if enabled
 if MeshParam.enable_protocol:
diff --git a/modem/modem.py b/modem/modem.py
index 9bee695e..7e330c66 100644
--- a/modem/modem.py
+++ b/modem/modem.py
@@ -61,11 +61,19 @@ class RF:
 
     log = structlog.get_logger("RF")
 
-    def __init__(self) -> None:
+    def __init__(self, config) -> None:
         """ """
         self.sampler_avg = 0
         self.buffer_avg = 0
 
+        self.config = config
+
+        self.audio_input_device = config['AUDIO']['rx']
+        self.audio_output_device = config['AUDIO']['tx']
+
+        self.rx_audio_level = config['AUDIO']['rxaudiolevel']
+        self.tx_audio_level = config['AUDIO']['txaudiolevel']
+
         self.AUDIO_SAMPLE_RATE_RX = 48000
         self.AUDIO_SAMPLE_RATE_TX = 48000
         self.MODEM_SAMPLE_RATE = codec2.api.FREEDV_FS_8000
@@ -185,7 +193,7 @@ class RF:
                     channels=1,
                     dtype="int16",
                     callback=self.callback,
-                    device=(AudioParam.audio_input_device, AudioParam.audio_output_device),
+                    device=(self.audio_input_device, self.audio_output_device),
                     samplerate=self.AUDIO_SAMPLE_RATE_RX,
                     blocksize=4800,
                 )
@@ -459,7 +467,7 @@ class RF:
         # self.log.debug("[MDM] callback")
         x = np.frombuffer(data_in48k, dtype=np.int16)
         x = self.resampler.resample48_to_8(x)
-        x = set_audio_volume(x, AudioParam.rx_audio_level)
+        x = set_audio_volume(x, self.rx_audio_level)
 
         # audio recording for debugging purposes
         if AudioParam.audio_record:
diff --git a/modem/server.py b/modem/server.py
index 131acf9c..c6596717 100644
--- a/modem/server.py
+++ b/modem/server.py
@@ -4,6 +4,8 @@ import os
 import serial_ports
 from config import CONFIG
 import audio
+import data_handler
+import modem
 
 app = Flask(__name__)
 sock = Sock(app)
@@ -33,6 +35,10 @@ def api_response(data, status = 'ok'):
 
 set_config()
 
+# start modem
+d = data_handler.DATA(app.config_manager.config)
+m = modem.RF(app.config_manager.config)
+
 ## REST API
 @app.route('/', methods=['GET'])
 def index():