diff --git a/xos/synchronizer/models/volt.xproto b/xos/synchronizer/models/volt.xproto
index b462f0f..d7e8b70 100644
--- a/xos/synchronizer/models/volt.xproto
+++ b/xos/synchronizer/models/volt.xproto
@@ -5,14 +5,15 @@
     option verbose_name = "vOLT Service";
     option kind = "vOLT";
 
-    required string voltha_url = 2 [max_length = 254, null = False, db_index = False, blank = False];
-    optional string voltha_user = 3 [max_length = 254, null = True, db_index = False, blank = True];
-    optional string voltha_pass = 4 [max_length = 254, null = True, db_index = False, blank = True];
-    required string p_onos_url = 5 [max_length = 254, null = False, db_index = False, blank = False];
-    optional string p_onos_user = 6 [max_length = 254, null = True, db_index = False, blank = True];
-    optional string p_onos_pass = 7 [max_length = 254, null = True, db_index = False, blank = True];
-
-    required string onu_provisioning = 8 [default = "allow_all", choices = "(('allow_all', 'Allow All'), ('pre_provisioned', 'Pre-provisione'), ('oss', 'OSS'))", null = False, db_index = False, blank = False];
+    required string voltha_url = 1 [help_text = "The Voltha API address. By default voltha.voltha.svc.cluster.local", default = "voltha.voltha.svc.cluster.local", max_length = 254, null = False, db_index = False, blank = False];
+    required int32 voltha_port = 2 [help_text = "The Voltha API port. By default 8882", default=8882, null = False, db_index = False, blank = False];
+    required string voltha_user = 3 [help_text = "The Voltha username. By default voltha", default="voltha", max_length = 254, null = False, db_index = False, blank = False];
+    required string voltha_pass = 4 [help_text = "The Voltha password. By default admin", default="admin", max_length = 254, null = False, db_index = False, blank = False];
+    required string onos_voltha_url = 5 [help_text = "The ONOS Voltha address. By default onos-voltha-ui.voltha.svc.cluster.local", default="onos-voltha-ui.voltha.svc.cluster.local", max_length = 254, null = False, db_index = False, blank = False];
+    required int32 onos_voltha_port = 6 [help_text = "The Voltha API port. By default 8181", default=8181, null = False, db_index = False, blank = False];
+    required string onos_voltha_user = 7 [help_text = "The ONOS Voltha username. By default sdn", max_length = 254, default="onos", null = True, db_index = False, blank = False];
+    required string onos_voltha_pass = 8 [help_text = "The ONOS Voltha password. By default rocks", max_length = 254, default="rocks", null = True, db_index = False, blank = False];
+    required string onu_provisioning = 9 [help_text = "If to automatically discover and provision the ONU or not", default = "allow_all", choices = "(('allow_all', 'Allow All'), ('pre_provisioned', 'Pre-provisione'), ('oss', 'OSS'))", null = False, db_index = False, blank = False];
 }
 
 message VOLTServiceInstance (ServiceInstance){