diff --git a/db_scripts/diff/15720.down b/db_scripts/diff/15720.down
new file mode 100644
index 00000000..933791f9
--- /dev/null
+++ b/db_scripts/diff/15720.down
@@ -0,0 +1,3 @@
+USE provisioning;
+
+DELETE FROM voip_preferences WHERE attribute = 'csc_calls';
diff --git a/db_scripts/diff/15720.up b/db_scripts/diff/15720.up
new file mode 100644
index 00000000..a03d5b43
--- /dev/null
+++ b/db_scripts/diff/15720.up
@@ -0,0 +1,25 @@
+USE provisioning;
+SET autocommit=0;
+
+SELECT id INTO @pgid FROM voip_preference_groups WHERE name = 'Internals';
+
+INSERT INTO voip_preferences SET
+    voip_preference_groups_id = @pgid,
+    attribute = "csc_calls",
+    label = "CSC calls",
+    type = 1,
+    max_occur = 1,
+    usr_pref = 1,
+    prof_pref = 0,
+    dom_pref = 0,
+    peer_pref = 0,
+    contract_pref = 0,
+    contract_location_pref = 0,
+    modify_timestamp = now(),
+    internal = 0,
+    expose_to_customer = 1,
+    data_type = "boolean",
+    read_only = 0,
+    description = "Defines if a subscriber can initiate calls from the CSC";
+
+COMMIT;
\ No newline at end of file