title: React native custom internet phone call
body: <p>I have a 3 part question from important to less important:</p>
  
  <p>Does someone know if there is a package to do phone calls trough the internet as Whatsapp and Facebook do?</p>
  
  <p>Would it even be possible to do it without a phone number?
  For example, only knowing someone's device id.</p>
  
  <p><a href="https://i.stack.imgur.com/Yk568.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Yk568.png" alt="enter image description here"></a></p>
  
  <p>And can you even make your "ring page" custom? So adding functionalities while calling.</p>
  
  <p>Thank you in advance!</p>