diff --git a/api/@ohos.net.connection.d.ts b/api/@ohos.net.connection.d.ts
index 2099f741b11d2a59138c921b2b38f9762a3829c3..3ff974a7558c559153b9f2c6c1ff02df4843297e 100644
--- a/api/@ohos.net.connection.d.ts
+++ b/api/@ohos.net.connection.d.ts
@@ -21,7 +21,7 @@ import socket from "./@ohos.net.socket";
  * Provides interfaces to manage and use data networks.
  *
  * @since 8
- * @sysCap SystemCapability.Communication.NetManager.Core
+ * @syscap SystemCapability.Communication.NetManager.Core
  */
 declare namespace connection {
   type HttpRequest = http.HttpRequest;
diff --git a/api/@ohos.net.http.d.ts b/api/@ohos.net.http.d.ts
index 8e5a182da1d46e7d767cd676836754987c538a3f..9d555afdde77c8873a33342ed88cf9752506fed7 100644
--- a/api/@ohos.net.http.d.ts
+++ b/api/@ohos.net.http.d.ts
@@ -19,7 +19,7 @@ import {AsyncCallback, Callback} from "./basic";
  * Provides http related APIs.
  *
  * @since 6
- * @sysCap SystemCapability.Communication.NetStack
+ * @syscap SystemCapability.Communication.NetStack
  */
 declare namespace http {
   /**
diff --git a/api/@ohos.net.socket.d.ts b/api/@ohos.net.socket.d.ts
index 61d4ea4165a7face43f4b04b74e8d7a1d9ff3320..ccabf9041a3e6fed0a43eb75f8b84bf296ec5dc8 100644
--- a/api/@ohos.net.socket.d.ts
+++ b/api/@ohos.net.socket.d.ts
@@ -20,7 +20,7 @@ import connection from "./@ohos.net.connection";
  * Provides TCP and UDP Socket APIs.
  *
  * @since 7
- * @sysCap SystemCapability.Communication.NetStack
+ * @syscap SystemCapability.Communication.NetStack
  */
 declare namespace socket {
   export import NetAddress = connection.NetAddress;
diff --git a/api/@ohos.net.statistics.d.ts b/api/@ohos.net.statistics.d.ts
index 3b53cec6ab0aec8870cc23a8aad000af13d3e8a5..9f1446839dabd36a14b78a7e5fd01baea7dbc620 100644
--- a/api/@ohos.net.statistics.d.ts
+++ b/api/@ohos.net.statistics.d.ts
@@ -19,7 +19,7 @@ import {AsyncCallback, Callback} from "./basic";
  * Obtains traffic statistics.
  *
  * @since 8
- * @sysCap SystemCapability.Communication.NetManager.Core
+ * @syscap SystemCapability.Communication.NetManager.Core
  */
 declare namespace statistics {
   /**
diff --git a/api/@ohos.telephony.call.d.ts b/api/@ohos.telephony.call.d.ts
index 6450e8c35c35e49c5d906ec983717ce1258e369f..7b5a03dd6165bea613bd31b10cac7002b0f2f7d1 100644
--- a/api/@ohos.telephony.call.d.ts
+++ b/api/@ohos.telephony.call.d.ts
@@ -19,7 +19,7 @@ import {AsyncCallback, Callback} from "./basic";
  * Provides methods related to call management.
  *
  * @since 6
- * @sysCap SystemCapability.Telephony.CallManager
+ * @syscap SystemCapability.Telephony.CallManager
  */
 declare namespace call {
   /**
@@ -72,6 +72,18 @@ declare namespace call {
   function muteRinger(callback: AsyncCallback<void>): void;
   function muteRinger(): Promise<void>;
 
+  /**
+   * Checks whether a device supports voice calls.
+   *
+   * <p>The system checks whether the device has the capability to initiate a circuit switching (CS) or IP multimedia
+   * subsystem domain (IMS) call on a telephone service network. If the device supports only packet switching
+   * (even if the device supports OTT calls), {@code false} is returned.
+   *
+   * @return Returns {@code true} if the device supports voice calls; returns {@code false} otherwise.
+   * @since 7
+   */
+  function hasVoiceCapability(): boolean;
+
   /**
    * Checks whether a phone number is on the emergency number list.
    *
diff --git a/api/@ohos.telephony.data.d.ts b/api/@ohos.telephony.data.d.ts
index e589ee35d1b27439df7afa980562c813ea56e1ea..24a6fa755671be2a349c21d7184f81325b2ff9cb 100644
--- a/api/@ohos.telephony.data.d.ts
+++ b/api/@ohos.telephony.data.d.ts
@@ -19,7 +19,7 @@ import {AsyncCallback} from "./basic";
  * Provides methods related to cellular data services.
  *
  * @since 7
- * @sysCap SystemCapability.Telephony.CellularData
+ * @syscap SystemCapability.Telephony.CellularData
  */
 declare namespace data {
   /**
diff --git a/api/@ohos.telephony.observer.d.ts b/api/@ohos.telephony.observer.d.ts
index 7a99d89d0611a86ecb45d9b625417177d38825c6..e7d6294044df12f73a131bcd017a0265da5de68f 100644
--- a/api/@ohos.telephony.observer.d.ts
+++ b/api/@ohos.telephony.observer.d.ts
@@ -24,7 +24,7 @@ import sim from "./@ohos.telephony.sim";
  * signal strength, call state, the data link connection state and others.
  *
  * @since 6
- * @sysCap SystemCapability.Telephony.StateRegistry
+ * @syscap SystemCapability.Telephony.StateRegistry
  */
 declare namespace observer {
   type NetworkState = radio.NetworkState;
diff --git a/api/@ohos.telephony.radio.d.ts b/api/@ohos.telephony.radio.d.ts
index e0377c03289ff415b9218b1d1856fe6a027565bc..cae3d90ff79ea82b000e84a7e08579f3114e1bde 100644
--- a/api/@ohos.telephony.radio.d.ts
+++ b/api/@ohos.telephony.radio.d.ts
@@ -21,7 +21,7 @@ import {AsyncCallback} from "./basic";
  * listen for changes of the network, cell, and signal status of the WCN.
  *
  * @since 6
- * @sysCap SystemCapability.Telephony.CoreService
+ * @syscap SystemCapability.Telephony.CoreService
  */
 declare namespace radio {
   /**
diff --git a/api/@ohos.telephony.sim.d.ts b/api/@ohos.telephony.sim.d.ts
index 5cd23a729609035ff193430309d2e9a67a618f75..35b4253181c565e3546fcf2cd6f3f4399d635701 100644
--- a/api/@ohos.telephony.sim.d.ts
+++ b/api/@ohos.telephony.sim.d.ts
@@ -20,7 +20,7 @@ import {AsyncCallback} from "./basic";
  * SIM cards include SIM, USIM, and CSIM cards.
  *
  * @since 6
- * @sysCap SystemCapability.Telephony.CoreService
+ * @syscap SystemCapability.Telephony.CoreService
  */
 declare namespace sim {
   /**
diff --git a/api/@ohos.telephony.sms.d.ts b/api/@ohos.telephony.sms.d.ts
index 940e63150d1dcadc1f389e3e80f228878e6e6a96..2a18155c134cf483126082fc6bef0aae38ca780b 100644
--- a/api/@ohos.telephony.sms.d.ts
+++ b/api/@ohos.telephony.sms.d.ts
@@ -19,7 +19,7 @@ import {AsyncCallback} from "./basic";
  * Provides the capabilities and methods for obtaining Short Message Service (SMS) management objects.
  *
  * @since 6
- * @sysCap SystemCapability.Telephony.SmsMms
+ * @syscap SystemCapability.Telephony.SmsMms
  */
 declare namespace sms {
   /**