未验证 提交 5eb42e0b 编写于 作者: K king_he 提交者: Gitee

update en/application-dev/telephony/telephony-overview.md.

Signed-off-by: Nking_he <6384784@qq.com>
上级 c19ab5a2
...@@ -4,11 +4,9 @@ The Telephony subsystem provides a series of APIs for [making calls](../referenc ...@@ -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). 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 ## Constraints
The accommodating device must be equipped with the following hardware: The accommodating device must be equipped with a modem and a SIM card capable of independent cellular communication.
A modem and a SIM card capable of independent cellular communication.
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