my example as follows
<!DOCTYPE html>
<html>
<head>
<link href="css/bootstrap.min.css" rel="stylesheet" media="screen">
<link href="css/bootstrap-form-helpers.min.css" rel="stylesheet" media="screen">
</head>
<body>
<h1>Hello, world!</h1>
<script src="js/jquery-1.10.2.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/bootstrap-formhelpers.min.js"></script>
<form class="example form-inline">
<p>Simple example for formatting a phone number in input text</p>
<input type="text" class="form-control bfh-phone" data-format="+1 (ddd) ddd-dddd">
</form>
</body>
</html>
and i read this bootstrap form helper phone wont work but the information is not sufficient
help me.