 class="mui-textfield">
                            <input type="text" class="id" placeholder="user@domain.com" data-enter-bind="call">
                            <label>User</label>
                        </div>
                        <button class="mui-btn mui-btn--raised mui-btn--primary call">Start Call</button>
                    </div>
                    <div id="step2" style="display:none">
                        <button class="mui-btn mui-btn--raised mui-btn--primary mute">Mute</button>
      