diff --git a/components/tc_bus/__init__.py b/components/tc_bus/__init__.py
index 3d93daf..92e839f 100644
--- a/components/tc_bus/__init__.py
+++ b/components/tc_bus/__init__.py
@@ -176,10 +176,14 @@ def validate_config(config):
                 IntercomRingtoneInternalCallSelect,
                 entity_category=ENTITY_CATEGORY_CONFIG,
             ),
-            cv.Optional(CONF_RINGTONE_INTERNAL_CALL): number.number_schema(
+            cv.Optional(CONF_VOLUME_HANDSET): number.number_schema(
                 IntercomVolumeHandsetNumber,
                 entity_category=ENTITY_CATEGORY_CONFIG,
             ),
+            cv.Optional(CONF_VOLUME_RINGTONE): number.number_schema(
+                IntercomVolumeRingtoneNumber,
+                entity_category=ENTITY_CATEGORY_CONFIG,
+            ),
             cv.Optional(CONF_BUS_COMMAND): text_sensor.text_sensor_schema(
                 entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
                 icon="mdi:console-network",
@@ -276,7 +280,7 @@ async def to_code(config):
 
     if volume_ringtone := config.get(CONF_VOLUME_RINGTONE):
         n = await number.new_number(
-            volume_ringtone, min_value=0, max_value=7, step=1
+            volume_handset, min_value=0, max_value=7, step=1
         )
         await cg.register_parented(n, config[CONF_ID])
         cg.add(var.set_intercom_volume_ringtone_number(n))