diff --git a/contrib/csv-to-pgsql.py b/contrib/csv-to-pgsql.py
index 416d8706..a805ab8a 100755
--- a/contrib/csv-to-pgsql.py
+++ b/contrib/csv-to-pgsql.py
@@ -285,10 +285,7 @@ if __name__ == '__main__':
     option_parser.add_argument("--admin", action='store_true', help="perform action as admin", default=False)
     opts = option_parser.parse_args()
 
-    PySimLogger.setup(print, {logging.WARN: "\033[33m"})
-    if (opts.verbose):
-        PySimLogger.set_verbose(True)
-        PySimLogger.set_level(logging.DEBUG)
+    PySimLogger.setup(print, {logging.WARN: "\033[33m"}, opts.verbose)
 
     # Open CSV file
     cr = open_csv(opts)
diff --git a/pySim-shell.py b/pySim-shell.py
index 50deea2a..89d011f1 100755
--- a/pySim-shell.py
+++ b/pySim-shell.py
@@ -107,12 +107,12 @@ Online manual available at https://downloads.osmocom.org/docs/pysim/master/html/
             kwargs = {'include_ipy': True}
 
         self.verbose = verbose
+        PySimLogger.setup(self.poutput, {logging.WARN: YELLOW})
         self._onchange_verbose('verbose', False, self.verbose);
 
         # pylint: disable=unexpected-keyword-arg
         super().__init__(persistent_history_file='~/.pysim_shell_history', allow_cli_args=False,
                          auto_load_commands=False, startup_script=script, **kwargs)
-        PySimLogger.setup(self.poutput, {logging.WARN: YELLOW})
         self.intro = style(self.BANNER, fg=RED)
         self.default_category = 'pySim-shell built-in commands'
         self.card = None
@@ -1175,13 +1175,7 @@ if __name__ == '__main__':
     opts = option_parser.parse_args()
 
     # Ensure that we are able to print formatted warnings from the beginning.
-    PySimLogger.setup(print, {logging.WARN: YELLOW})
-    if opts.verbose:
-        PySimLogger.set_verbose(True)
-        PySimLogger.set_level(logging.DEBUG)
-    else:
-        PySimLogger.set_verbose(False)
-        PySimLogger.set_level(logging.INFO)
+    PySimLogger.setup(print, {logging.WARN: YELLOW}, opts.verbose)
 
     # Register csv-file as card data provider, either from specified CSV
     # or from CSV file in home directory
diff --git a/pySim/log.py b/pySim/log.py
index 85397b6d..801ad69e 100644
--- a/pySim/log.py
+++ b/pySim/log.py
@@ -63,7 +63,7 @@ class PySimLogger:
         raise RuntimeError('static class, do not instantiate')
 
     @staticmethod
-    def setup(print_callback = None, colors:dict = {}):
+    def setup(print_callback = None, colors:dict = {}, verbose_debug:bool = False):
         """
         Set a print callback function and color scheme. This function call is optional. In case this method is not
         called, default settings apply.
@@ -72,10 +72,20 @@ class PySimLogger:
                              have the following format: print_callback(message:str)
             colors : An optional dict through which certain log levels can be assigned a color.
                      (e.g. {logging.WARN: YELLOW})
+            verbose_debug: Enable verbose logging and set the loglevel DEBUG when set to true. Otherwise the
+                           non-verbose logging is used and the loglevel is set to INFO. This setting can be changed
+                           using the set_verbose and set_level methods at any time.
         """
         PySimLogger.print_callback = print_callback
         PySimLogger.colors = colors
 
+        if (verbose_debug):
+            PySimLogger.set_verbose(True)
+            PySimLogger.set_level(logging.DEBUG)
+        else:
+            PySimLogger.set_verbose(False)
+            PySimLogger.set_level(logging.INFO)
+
     @staticmethod
     def set_verbose(verbose:bool = False):
         """