diff --git a/en/application-dev/telephony/telephony-overview.md b/en/application-dev/telephony/telephony-overview.md
index 0622cde754c524766cc24c21b8d83a3b6df9d954..8fc3587c8c93428f1a243025a3e1743aca40bdb0 100644
--- a/en/application-dev/telephony/telephony-overview.md
+++ b/en/application-dev/telephony/telephony-overview.md
@@ -4,11 +4,9 @@ The Telephony subsystem provides a series of APIs for [making calls](../referenc
 
 Your application can call related APIs to obtain the name of the currently registered network, network service status, signal strength, and SIM card information. For details, see [Obtaining Current Cellular Network Signal Information](cellular-network-signal-info.md).
 
-To make calls, your application needs to declear the **ohos.permission.PLACE_CALL** permission. It is recommended that the application use **makeCall()** to redirect users to the dial screen and display the dialed number. For details, see [Redirecting to the Dial Screen](jumping-to-the-dial-screen.md).
+To make calls, your application needs to declare the **ohos.permission.PLACE_CALL** permission. It is recommended that the application use **makeCall()** to redirect users to the dial screen and display the dialed number. For details, see [Redirecting to the Dial Screen](jumping-to-the-dial-screen.md).
 
 
 ## Constraints
 
-The accommodating device must be equipped with the following hardware:
-
- A modem and a SIM card capable of independent cellular communication.
+The accommodating device must be equipped with a modem and a SIM card capable of independent cellular communication.