diff --git a/db_scripts/diff/15564.down b/db_scripts/diff/15564.down
new file mode 100644
index 00000000..0d832800
--- /dev/null
+++ b/db_scripts/diff/15564.down
@@ -0,0 +1,6 @@
+USE provisioning;
+set autocommit = 0;
+
+DELETE FROM voip_preferences WHERE attribute = "contact_ringtime";
+
+commit;
diff --git a/db_scripts/diff/15564.up b/db_scripts/diff/15564.up
new file mode 100644
index 00000000..f2df3af1
--- /dev/null
+++ b/db_scripts/diff/15564.up
@@ -0,0 +1,25 @@
+use provisioning;
+set autocommit=0;
+
+insert into voip_preferences
+  set
+voip_preference_groups_id = (select id from voip_preference_groups where name="Internals"),
+attribute = "contact_ringtimeout",
+label = "Ring Timeout of each single contact",
+type = 1,
+max_occur = 1,
+usr_pref = 1,
+prof_pref = 0,
+dom_pref = 1,
+peer_pref = 0,
+contract_pref = 0,
+contract_location_pref = 0,
+dev_pref = 0,
+devprof_pref = 0,
+internal = 0,
+expose_to_customer = 0,
+data_type = "int",
+read_only = 0,
+description = "Specifies how many seconds each single contact should ring before the calls goes to the next one. It is considered only in case of forking based on Q value.";
+
+commit;