phone: share context between home and zone

welco/sources/phone/views.py

@@ -36,9 +36,10 @@ class Home(object):
         self.request = request
 
     def render(self):
+        zone = PhoneZone()
+        zone.request = self.request
         context = RequestContext(self.request)
-        context['source_type'] = ContentType.objects.get_for_model(PhoneCall)
-        context['phonelines'] = PhoneLine.objects.filter(users__id=self.request.user.id)
+        context.update(zone.get_context_data())
         tmpl = template.loader.get_template('welco/phone_home.html')
         return tmpl.render(context)