Nativ call not working


I try to made a call, when the user tap on a phonenumber:
(The page is display modal)

import { InAppBrowser, InAppBrowserObject } from '@ionic-native/in-app-browser/ngx';

    private inAppBrowser: InAppBrowser,
  openUrl(url: string) {
    const browser: InAppBrowserObject = this.inAppBrowser.create(url, '_system', 'hidden=yes,location=yes');

  launchCall(n: string) {
    const browser: InAppBrowserObject = this.inAppBrowser.create('tel:' + n, '_system', 'hidden=yes,location=yes');

  sendMail(url: string) {
    const browser: InAppBrowserObject = this.inAppBrowser.create(
      'mailto:' + url + '?subject=Subject', '_system', 'hidden=yes,location=yes');

openURL and sendMail is working

But not launchCall.

I have in my config.xml:

    <access origin="*" />
    <access launch-external="yes" origin="tel:*" />
    <allow-intent href="http://*/*" />
    <allow-intent href="https://*/*" />
    <allow-intent href="tel:*" />
    <allow-intent href="sms:*" />
    <allow-intent href="mailto:*" />
    <allow-intent href="geo:*" />

Where is my mistake?

Thank you!

Have you connected the browser dev tools? Nothing seem wrong, but the dev tools will tell you if there is an error.


thank you … unfortunately I’m a beginner.
I develop on a MacBook … which dev tool did you mean?

Thank you … I start the simulator with:
ionic cordova emulate ios --livereload

But this open Port 8100 on my MacBook and don’t display the complete app … because I did not add a browser platform?

I try to test only with my iPhone or emulate.

But here the Chrome DevTools are not working, right?