diff --git a/doc/releases/migration-guide-4.2.rst b/doc/releases/migration-guide-4.2.rst
index 00e7da9d1631..6fca3d64f5c4 100644
--- a/doc/releases/migration-guide-4.2.rst
+++ b/doc/releases/migration-guide-4.2.rst
@@ -44,6 +44,13 @@ Device Drivers and Devicetree
 Bluetooth
 *********
 
+Bluetooth Host
+==============
+
+* The symbols ``BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_<NUMBER>`` in
+  :zephyr_file:`include/zephyr/bluetooth/conn.h` have been renamed
+  to ``BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A<NUMBER>_B<NUMBER>``.
+
 Networking
 **********
 
diff --git a/include/zephyr/bluetooth/conn.h b/include/zephyr/bluetooth/conn.h
index 73a14b09ab99..da72b2b506de 100644
--- a/include/zephyr/bluetooth/conn.h
+++ b/include/zephyr/bluetooth/conn.h
@@ -1558,14 +1558,14 @@ enum bt_conn_le_cs_procedure_enable_state {
  *  - 2:2 configuration, where both A and B support 2 antennas and N_AP = 4
  */
 enum bt_conn_le_cs_tone_antenna_config_selection {
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_ONE = BT_HCI_OP_LE_CS_ACI_0,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_TWO = BT_HCI_OP_LE_CS_ACI_1,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_THREE = BT_HCI_OP_LE_CS_ACI_2,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_FOUR = BT_HCI_OP_LE_CS_ACI_3,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_FIVE = BT_HCI_OP_LE_CS_ACI_4,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_SIX = BT_HCI_OP_LE_CS_ACI_5,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_SEVEN = BT_HCI_OP_LE_CS_ACI_6,
-	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_EIGHT = BT_HCI_OP_LE_CS_ACI_7,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B1 = BT_HCI_OP_LE_CS_ACI_0,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A2_B1 = BT_HCI_OP_LE_CS_ACI_1,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A3_B1 = BT_HCI_OP_LE_CS_ACI_2,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A4_B1 = BT_HCI_OP_LE_CS_ACI_3,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B2 = BT_HCI_OP_LE_CS_ACI_4,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B3 = BT_HCI_OP_LE_CS_ACI_5,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B4 = BT_HCI_OP_LE_CS_ACI_6,
+	BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A2_B2 = BT_HCI_OP_LE_CS_ACI_7,
 };
 
 struct bt_conn_le_cs_procedure_enable_complete {
diff --git a/samples/bluetooth/channel_sounding/include/cs_test_params.h b/samples/bluetooth/channel_sounding/include/cs_test_params.h
index 1171ea1ee1e2..84931c4533f2 100644
--- a/samples/bluetooth/channel_sounding/include/cs_test_params.h
+++ b/samples/bluetooth/channel_sounding/include/cs_test_params.h
@@ -31,7 +31,7 @@ static struct bt_le_cs_test_param test_params_get(enum bt_conn_le_cs_role role)
 	params.t_fcs_time = 150;
 	params.t_pm_time = 40;
 	params.t_sw_time = 0;
-	params.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_ONE;
+	params.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B1;
 
 	params.initiator_snr_control = BT_LE_CS_SNR_CONTROL_NOT_USED;
 	params.reflector_snr_control = BT_LE_CS_SNR_CONTROL_NOT_USED;
diff --git a/samples/bluetooth/channel_sounding/src/connected_cs_initiator.c b/samples/bluetooth/channel_sounding/src/connected_cs_initiator.c
index 13f23d3c8e05..1a012665c759 100644
--- a/samples/bluetooth/channel_sounding/src/connected_cs_initiator.c
+++ b/samples/bluetooth/channel_sounding/src/connected_cs_initiator.c
@@ -329,7 +329,7 @@ int main(void)
 		.max_procedure_count = 0,
 		.min_subevent_len = 6750,
 		.max_subevent_len = 6750,
-		.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_ONE,
+		.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B1,
 		.phy = BT_LE_CS_PROCEDURE_PHY_1M,
 		.tx_power_delta = 0x80,
 		.preferred_peer_antenna = BT_LE_CS_PROCEDURE_PREFERRED_PEER_ANTENNA_1,
diff --git a/subsys/bluetooth/host/shell/cs.c b/subsys/bluetooth/host/shell/cs.c
index 2597063cbed4..87ce5b082fe8 100644
--- a/subsys/bluetooth/host/shell/cs.c
+++ b/subsys/bluetooth/host/shell/cs.c
@@ -220,7 +220,7 @@ static int cmd_cs_test_simple(const struct shell *sh, size_t argc, char *argv[])
 	params.t_fcs_time = 120;
 	params.t_pm_time = 20;
 	params.t_sw_time = 0;
-	params.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_ONE;
+	params.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B1;
 	params.initiator_snr_control = BT_LE_CS_SNR_CONTROL_NOT_USED;
 	params.reflector_snr_control = BT_LE_CS_SNR_CONTROL_NOT_USED;
 	params.drbg_nonce = 0x1234;
@@ -638,7 +638,7 @@ static int cmd_set_procedure_parameters(const struct shell *sh, size_t argc, cha
 	params.max_procedure_count = 1;
 	params.min_subevent_len = 5000;
 	params.max_subevent_len = 4000000;
-	params.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_ONE;
+	params.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B1;
 	params.phy = 0x01;
 	params.tx_power_delta = 0x80;
 	params.preferred_peer_antenna = 1;