So basically right now I can create a button with an A tag that has an href=\"tel:XXXXXXXXXXX\" and if a user clicks / taps on that it will bring them into their phone applicati
You can try with below one,
window.location.href = "tel:+91123456789";
But, for IOS it may not work because of some permission issues. In that case you can try like below,
window.open('tel:+91123456789', '_system');