diff --git a/db_scripts/diff/15349.down b/db_scripts/diff/15349.down
new file mode 100644
index 00000000..2b614690
--- /dev/null
+++ b/db_scripts/diff/15349.down
@@ -0,0 +1,13 @@
+use provisioning;
+set autocommit=0;
+
+set @pid = 0;
+select id into @pid from voip_preferences where attribute = "lock";
+
+DELETE FROM voip_preferences_enum
+ WHERE preference_id = @pid
+   AND label = 'none'
+   AND value = 0
+   AND default_val = 0;
+
+commit;
diff --git a/db_scripts/diff/15349.up b/db_scripts/diff/15349.up
new file mode 100644
index 00000000..cc14b008
--- /dev/null
+++ b/db_scripts/diff/15349.up
@@ -0,0 +1,10 @@
+use provisioning;
+set autocommit=0;
+
+set @pid = 0;
+select id into @pid from voip_preferences where attribute = "lock";
+
+INSERT INTO voip_preferences_enum
+    (preference_id, label, value, default_val) VALUES (@pid, 'none', 0, 0);
+
+commit;