diff --git a/xos/attic/volttenant_model.py b/xos/attic/volttenant_model.py
new file mode 100644
index 0000000..e9a101b
--- /dev/null
+++ b/xos/attic/volttenant_model.py
@@ -0,0 +1,117 @@
+def __init__(self, *args, **kwargs):
+    volt_services = VOLTService.get_service_objects().all()
+    if volt_services:
+        self._meta.get_field("provider_service").default = volt_services[0].id
+    super(VOLTTenant, self).__init__(*args, **kwargs)
+    self.cached_vcpe = None
+
+@property
+def vcpe(self):
+    from services.vsg.models import VSGTenant
+    vcpe = self.get_newest_subscribed_tenant(VSGTenant)
+    if not vcpe:
+        return None
+
+    # always return the same object when possible
+    if (self.cached_vcpe) and (self.cached_vcpe.id == vcpe.id):
+        return self.cached_vcpe
+
+    vcpe.caller = self.creator
+    self.cached_vcpe = vcpe
+    return vcpe
+
+@vcpe.setter
+def vcpe(self, value):
+    raise XOSConfigurationError("vOLT.vCPE cannot be set this way -- create a new vCPE object and set its subscriber_tenant instead")
+
+@property
+def subscriber(self):
+    if not self.subscriber_root:
+        return None
+    subs = CordSubscriberRoot.objects.filter(id=self.subscriber_root.id)
+    if not subs:
+        return None
+    return subs[0]
+
+def manage_vcpe(self):
+    # Each VOLT object owns exactly one VCPE object
+
+    if self.deleted:
+        return
+
+    # Check to see if the wrong s-tag is set. This can only happen if the
+    # user changed the s-tag after the VoltTenant object was created.
+    if self.vcpe and self.vcpe.instance:
+        s_tags = Tag.select_by_content_object(self.vcpe.instance).filter(name="s_tag")
+        if s_tags and (s_tags[0].value != str(self.s_tag)):
+            self.vcpe.delete()
+
+    if self.vcpe is None:
+        from services.vsg.models import VSGService, VSGTenant
+        vsgServices = VSGService.get_service_objects().all()
+        if not vsgServices:
+            raise XOSConfigurationError("No VSG Services available")
+
+        vcpe = VSGTenant(provider_service = vsgServices[0],
+                          subscriber_tenant = self)
+        vcpe.caller = self.creator
+        vcpe.save()
+
+def manage_subscriber(self):
+    if (self.subscriber_root is None):
+        # The vOLT is not connected to a Subscriber, so either find an
+        # existing subscriber with the same SSID, or autogenerate a new
+        # subscriber.
+        #
+        # TODO: This probably goes away when we rethink the ONOS-to-XOS
+        # vOLT API.
+
+        subs = CordSubscriberRoot.get_tenant_objects().filter(service_specific_id = self.service_specific_id)
+        if subs:
+            sub = subs[0]
+        else:
+            sub = CordSubscriberRoot(service_specific_id = self.service_specific_id,
+                                     name = "autogenerated-for-vOLT-%s" % self.id)
+            sub.save()
+        self.subscriber_root = sub
+        self.save()
+
+def cleanup_vcpe(self):
+    if self.vcpe:
+        # print "XXX cleanup vcpe", self.vcpe
+        self.vcpe.delete()
+
+def cleanup_orphans(self):
+    from services.vsg.models import VSGTenant
+    # ensure vOLT only has one vCPE
+    cur_vcpe = self.vcpe
+    for vcpe in list(self.get_subscribed_tenants(VSGTenant)):
+        if (not cur_vcpe) or (vcpe.id != cur_vcpe.id):
+            # print "XXX clean up orphaned vcpe", vcpe
+            vcpe.delete()
+
+def save(self, *args, **kwargs):
+    # VOLTTenant probably doesn't need a SSID anymore; that will be handled
+    # by CORDSubscriberRoot...
+    # self.validate_unique_service_specific_id()
+
+    if (self.subscriber_root is not None):
+        subs = self.subscriber_root.get_subscribed_tenants(VOLTTenant)
+        if (subs) and (self not in subs):
+            raise XOSDuplicateKey("Subscriber should only be linked to one vOLT")
+
+    if not self.creator:
+        if not getattr(self, "caller", None):
+            # caller must be set when creating a vCPE since it creates a slice
+            raise XOSProgrammingError("VOLTTenant's self.caller was not set")
+        self.creator = self.caller
+        if not self.creator:
+            raise XOSProgrammingError("VOLTTenant's self.creator was not set")
+
+    super(VOLTTenant, self).save(*args, **kwargs)
+    model_policy_volt(self.pk)
+
+def delete(self, *args, **kwargs):
+    self.cleanup_vcpe()
+    super(VOLTTenant, self).delete(*args, **kwargs)
+