Users can set a value that appears as the sender of a text message.

It can be up to eleven characters alpha numeric, no special characters
allowed.

app/templates/views/service-settings.html

@@ -18,6 +18,10 @@
         'title': 'Set email reply to address',
         'link': url_for('.service_set_reply_to_email', service_id=current_service.id)
       },
+      {
+        'title': 'Set text message sender name',
+        'link': url_for('.service_set_sms_sender', service_id=current_service.id)
+      },
       {
         'title': 'Request to go live and turn off trial mode',
         'link': url_for('.service_request_to_go_live', service_id=current_service.id),