diff --git a/en/readme/telephony.md b/en/readme/telephony.md
index 6c53664a7cadf9765683544cc5de08f72588290c..f94af3b09015b5470faeb427c515a7f64d8ccdd4 100755
--- a/en/readme/telephony.md
+++ b/en/readme/telephony.md
@@ -45,7 +45,7 @@ base/telephony/
 ## Constraints<a name="section123mcpsimp"></a>
 
 1.  The open-source version currently provides the cellular call (CS call only), SMS & MMS, and cellular data services and supports the dual-SIM framework.
-2.  The Hardware Device Interface (HDI) support is subject to the chip vendors' adaptation capability. For details, see [Telephony Service Development](https://gitee.com/openharmony/docs/blob/master/en/device-dev/subsystems/subsys-tel.md).
+2.  The Hardware Device Interface (HDI) support is subject to the chip vendors' adaptation capability. For details, see [Telephony Service Development](../device-dev/subsystems/subsys-tel-overview.md).
 
 ## Usage Guidelines<a name="section128mcpsimp"></a>
 
diff --git "a/zh-cn/readme/\347\224\265\350\257\235\346\234\215\345\212\241\345\255\220\347\263\273\347\273\237.md" "b/zh-cn/readme/\347\224\265\350\257\235\346\234\215\345\212\241\345\255\220\347\263\273\347\273\237.md"
index af05135d8347c7fed29359967831f316a5056c8c..deee8ba6f71171a3e68b8d3038291c911c21266e 100644
--- "a/zh-cn/readme/\347\224\265\350\257\235\346\234\215\345\212\241\345\255\220\347\263\273\347\273\237.md"
+++ "b/zh-cn/readme/\347\224\265\350\257\235\346\234\215\345\212\241\345\255\220\347\263\273\347\273\237.md"
@@ -45,7 +45,7 @@ base/telephony/
 ## 约束<a name="section123mcpsimp"></a>
 
 1.  目前开源的范围包括蜂窝通话（仅支持CS通话）、短信、数据上网，支持双SIM卡框架。
-2.  南向HDI依赖芯片厂商适配，详见：[电话服务南向开发指导](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/subsystems/subsys-tel.md)。
+2.  南向HDI依赖芯片厂商适配，详见：[电话服务南向开发指导](../device-dev/subsystems/subsys-tel-overview.md)。
 
 ## 使用说明<a name="section128mcpsimp"></a>