title: how to remove prompt character from kendo maskedtextbox mvvm value binding
body: <p>I am using Kendo UI Masked Textbox and MVVM value binding. </p>
  
  <p>The viewmodel phonenumber does not contain any prompt characters like "()-" it contains simply the numbers.</p>
  
  <p><code>var viewModel = kendo.observable({
       phoneNumber: "1234567890",
       onChange: function () {
           alert("event :: change " + this.get("phoneNumber"));
       }
   });
   kendo.bind($("#example"), viewModel);</code></p>
  
  <p>When you change the value in the form and inspect the viewModel phoneNumber (see onchange function). The phoneNumber now contains special/prompt characters e.g. <code>phoneNumber: "(444) 555-5555"</code></p>
  
  <p>This is my problem, i expect the value of the MaskedTextbox to return only numbers <code>phoneNumber: "4445555555"</code> not with the special characters. </p>
  
  <p><a href="https://jsfiddle.net/jLu3j7us/1/" rel="nofollow">Full Code Snippet @JS Fiddle</a></p>