diff --git a/splitio/engine/telemetry.py b/splitio/engine/telemetry.py
index f2ecf6f8..e1802131 100644
--- a/splitio/engine/telemetry.py
+++ b/splitio/engine/telemetry.py
@@ -48,6 +48,10 @@ def record_ready_time(self, ready_time):
         """Record ready time."""
         self._telemetry_storage.record_ready_time(ready_time)
 
+    def record_flag_sets(self, flag_sets):
+        """Record flag sets."""
+        self._telemetry_storage.record_flag_sets(flag_sets)
+
     def record_bur_time_out(self):
         """Record block until ready timeout."""
         self._telemetry_storage.record_bur_time_out()
diff --git a/tests/engine/test_telemetry.py b/tests/engine/test_telemetry.py
index 78466e87..79bcd744 100644
--- a/tests/engine/test_telemetry.py
+++ b/tests/engine/test_telemetry.py
@@ -20,15 +20,42 @@ def test_instances(self):
         assert(telemetry_producer._telemetry_runtime_producer == telemetry_producer.get_telemetry_runtime_producer())
 
     def test_record_config(self, mocker):
-        telemetry_storage = mocker.Mock()
+        telemetry_storage = InMemoryTelemetryStorage()
         telemetry_init_producer = TelemetryInitProducer(telemetry_storage)
-
-        def record_config(*args, **kwargs):
-            self.passed_config = args[0]
-
-        telemetry_storage.record_config.side_effect = record_config
-        telemetry_init_producer.record_config({'bT':0, 'nR':0, 'uC': 0}, {})
-        assert(self.passed_config == {'bT':0, 'nR':0, 'uC': 0})
+        config = {'operationMode': 'standalone',
+            'streamingEnabled': True,
+            'impressionsQueueSize': 100,
+            'eventsQueueSize': 200,
+            'impressionsMode': 'DEBUG',
+            'impressionListener': None,
+            'featuresRefreshRate': 30,
+            'segmentsRefreshRate': 30,
+            'impressionsRefreshRate': 60,
+            'eventsPushRate': 60,
+            'metricsRefreshRate': 10,
+            'storageType': None
+        }
+        telemetry_init_producer.record_config(config, {})
+        telemetry_init_producer.record_active_and_redundant_factories(1, 0)
+        telemetry_init_producer.record_flag_sets(2)
+
+        assert(telemetry_storage._tel_config.get_stats() == {'oM': 0,
+            'sT': telemetry_storage._tel_config._get_storage_type(config['operationMode'], config['storageType']),
+            'sE': config['streamingEnabled'],
+            'rR': {'sp': 30, 'se': 30, 'im': 60, 'ev': 60, 'te': 10},
+            'uO':  {'s': False, 'e': False, 'a': False, 'st': False, 't': False},
+            'iQ': config['impressionsQueueSize'],
+            'eQ': config['eventsQueueSize'],
+            'iM': telemetry_storage._tel_config._get_impressions_mode(config['impressionsMode']),
+            'iL': True if config['impressionListener'] is not None else False,
+            'hp': telemetry_storage._tel_config._check_if_proxy_detected(),
+            'bT': 0,
+            'tR': 0,
+            'nR': 0,
+            'aF': 1,
+            'rF': 0,
+            'fS': 2}
+            )
 
     def test_record_ready_time(self, mocker):
         telemetry_storage = mocker.Mock()