如何拉起拨号界面并指定号码

import { call } from '@kit.TelephonyKit'; 
import { common } from '@kit.AbilityKit'; 
import { BusinessError } from '@kit.BasicServicesKit'; 
 
function startCallDialog(): void { 
  let isSupport = call.hasVoiceCapability(); 
  if (!isSupport) { 
    console.error('Not support voice capability.'); 
    return; 
  } 
 
  call.makeCall('16888888888', (err: BusinessError) => { 
    if (err) { 
      console.error(`Failed to make call. Code is ${err.code}, Message is ${err.message}`); 
      return; 
    } 
    console.info('Succeeded in making call.'); 
  }) 
} 
 
@Entry 
@Component 
struct Index { 
  @State message: string = 'Hello World'; 
 
  build() { 
    Row() { 
      Column() { 
        Button(this.message) 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
          .onClick(() => { 
            const context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext; 
            startCallDialog(); 
          }) 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
}