Fixed broken edit functionality

app/templates/views/service-settings/sms-sender/edit.html

@@ -13,9 +13,9 @@
     Edit text message sender
   </h1>
   <form method="post">
-    {% if is_inbound_number %}
+    {% if inbound_number %}
       <p>
-        <span class="bottom-gutter-1-3"> {{ form.sms_sender.data }} </span>
+        <span class="bottom-gutter-1-3"> {{ sms_sender.sms_sender }} </span>
         <span class="hint"> This phone number receives replies and can’t be changed </span>
       </p>
     {% else %}