diff --git a/examples/ReadSMS/ReadSMS.ino b/examples/ReadSMS/ReadSMS.ino
index eeecd31..57a6f10 100644
--- a/examples/ReadSMS/ReadSMS.ino
+++ b/examples/ReadSMS/ReadSMS.ino
@@ -4,7 +4,7 @@
  * @license   MIT
  * @copyright Copyright (c) 2024  Shenzhen Xin Yuan Electronic Technology Co., Ltd
  * @date      2024-08-29
- * @note      Not support T-SIM7670/SIM7672
+ * @note      SIM7670G does not support SMS and voice functions
  * ! Only read data, not decode data. For detailed SMS operation, please refer to A76XX_Series_AT_Command_Manual
  */
 
diff --git a/examples/SendLocationFromSMS/SendLocationFromSMS.ino b/examples/SendLocationFromSMS/SendLocationFromSMS.ino
index 7dcb199..c914830 100644
--- a/examples/SendLocationFromSMS/SendLocationFromSMS.ino
+++ b/examples/SendLocationFromSMS/SendLocationFromSMS.ino
@@ -4,7 +4,7 @@
  * @license   MIT
  * @copyright Copyright (c) 2024  Shenzhen Xin Yuan Electronic Technology Co., Ltd
  * @date      2024-08-23
- * @note      SIM7670G can send SMS depending on the operator. This is not allowed in China. Please test it yourself.
+ * @note      SIM7670G does not support SMS and voice functions
  */
 
 #include "utilities.h"
diff --git a/examples/SendSMS/SendSMS.ino b/examples/SendSMS/SendSMS.ino
index ca17ac7..415ed51 100644
--- a/examples/SendSMS/SendSMS.ino
+++ b/examples/SendSMS/SendSMS.ino
@@ -4,9 +4,7 @@
  * @license   MIT
  * @copyright Copyright (c) 2023  Shenzhen Xin Yuan Electronic Technology Co., Ltd
  * @date      2023-11-16
- * @note      Not support T-SIM7672
- * *  Although the manual of SIM7672G states that it has the functions of making voice calls and sending text messages,
- * *  the current firmware does not support it.
+ * @note      SIM7670G does not support SMS and voice functions
  */
 
 #include "utilities.h"