diff --git a/example/le_data_channel_server.c b/example/le_data_channel_server.c
index 8d15971da..61a95e740 100644
--- a/example/le_data_channel_server.c
+++ b/example/le_data_channel_server.c
@@ -234,9 +234,10 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
                             conn_interval = hci_subevent_le_connection_complete_get_conn_interval(packet);
                             printf("%c: Connection Interval: %u.%02u ms\n", le_data_channel_connection.name, conn_interval * 125 / 100, 25 * (conn_interval & 3));
                             printf("%c: Connection Latency: %u\n", le_data_channel_connection.name, hci_subevent_le_connection_complete_get_conn_latency(packet));
-                            // min con interval 20 ms 
-                            // gap_request_connection_parameter_update(connection_handle, 0x10, 0x18, 0, 0x0048);
-                            // printf("Connected, requesting conn param update for handle 0x%04x\n", connection_handle);
+
+                            // min con interval 15 ms - supported from iOS 11 
+                            gap_request_connection_parameter_update(le_data_channel_connection.connection_handle, 12, 12, 0, 0x0048);
+                            printf("Connected, requesting conn param update for handle 0x%04x\n", le_data_channel_connection.connection_handle);
                             // 
                             test_reset(&le_data_channel_connection);
                             break;