<vn-watcher
    vn-id="watcher"
    data="$ctrl.worker.sip">
</vn-watcher>
<form name="form" ng-submit="$ctrl.onSubmit()" compact>
    <vn-card pad-large>
        <vn-vertical>
            <vn-horizontal>
                <vn-input-number vn-one min="1" step="1"
                    label="Extension" 
                    model="$ctrl.worker.sip.extension">
                </vn-input-number>
                <vn-textfield
                    vn-one
                    label="Password"
                    model="$ctrl.worker.sip.secret">
                </vn-textfield>
            </vn-horizontal>
        </vn-vertical>
    </vn-card>
    <vn-button-bar>
        <vn-submit label="Save"></vn-submit>
    </vn-button-bar>
</form>