diff --git a/callattendant/config.py b/callattendant/config.py
index b4a7f8c..296f923 100644
--- a/callattendant/config.py
+++ b/callattendant/config.py
@@ -20,7 +20,7 @@
 # and screened callers through to the home phone.
 #
 default_config = {
-    "VERSION": '1.7.2',
+    "VERSION": '1.7.3',
 
     "DEBUG": False,
     "TESTING": False,
diff --git a/callattendant/hardware/modem.py b/callattendant/hardware/modem.py
index 85a5a8e..cbc42f5 100644
--- a/callattendant/hardware/modem.py
+++ b/callattendant/hardware/modem.py
@@ -423,7 +423,9 @@ def play_audio(self, audio_file_name):
                     if self._serial.in_waiting > 1:
                         modem_data = self._serial.read(self._serial.in_waiting).decode("utf-8", "ignore").strip()
                         if debugging:
-                            print(">> play_audio input: {}".format(modem_data))
+                            print(">> play_audio input: {}".format(
+                                  "".join(map(lambda x: '<DLE>' if x == DLE_CODE else
+                                                        '<ETX>' if x == ETX_CODE else x, modem_data))))
                         if modem_data != '':
                             if modem_data[0] == DLE_CODE:
                                 if (modem_data[1] == DCE_PHONE_OFF_HOOK) or \
diff --git a/setup.py b/setup.py
index 53127b1..ff6a679 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 setuptools.setup(
     name="callattendant",   # Add username when uploading to TestPyPI
-    version="1.7.2",        # Ensure this is in-sync with VERSION in config.py
+    version="1.7.3",        # Ensure this is in-sync with VERSION in config.py
     author="Ted Hess",
     author_email="thess@kitschensync.net",
     description="An automated call attendant and call blocker using a USR5637 or CX930xx modem",