diff --git a/db_scripts/diff/15500.down b/db_scripts/diff/15500.down
new file mode 100644
index 00000000..45bb10da
--- /dev/null
+++ b/db_scripts/diff/15500.down
@@ -0,0 +1,12 @@
+set autocommit=0;
+USE provisioning;
+
+SET FOREIGN_KEY_CHECKS=0;
+
+DROP TABLE `voip_header_rule_sets`;
+DROP TABLE `voip_header_rules`;
+DROP TABLE `voip_header_rule_conditions`;
+DROP TABLE `voip_header_rule_condition_values`;
+DROP TABLE `voip_header_rule_actions`;
+
+COMMIT;
diff --git a/db_scripts/diff/15500.up b/db_scripts/diff/15500.up
new file mode 100644
index 00000000..461970b3
--- /dev/null
+++ b/db_scripts/diff/15500.up
@@ -0,0 +1,83 @@
+set autocommit=0;
+USE provisioning;
+
+CREATE TABLE `voip_header_rule_sets` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `reseller_id` int(11) unsigned NOT NULL DEFAULT '1',
+  `name` varchar(255) NOT NULL,
+  `description` varchar(255) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `res_name_idx` (`reseller_id`,`name`),
+  CONSTRAINT `vhrs_reseller_ref` FOREIGN KEY (`reseller_id`) REFERENCES `billing`.`resellers` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+CREATE TABLE `voip_header_rules` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `set_id` int(11) unsigned NOT NULL,
+  `name` varchar(255) NOT NULL,
+  `description` varchar(255) DEFAULT NULL,
+  `priority` int(11) unsigned NOT NULL DEFAULT '100',
+  `direction` enum('inbound','outbound','local','peer') NOT NULL DEFAULT 'inbound',
+  `stopper` tinyint(1) unsigned NOT NULL DEFAULT 0,
+  `enabled` tinyint(1) unsigned NOT NULL DEFAULT 1,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `set_name_idx` (`set_id`,`name`),
+  KEY `direction_idx` (`direction`),
+  KEY `priority_idx` (`priority`),
+  KEY `enabled_idx` (`enabled`),
+  CONSTRAINT `v_hr_setid_ref` FOREIGN KEY (`set_id`) REFERENCES `voip_header_rule_sets` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+CREATE TABLE `voip_header_rule_conditions` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `rule_id` int(11) unsigned NOT NULL,
+  `match_type` enum('header','preference','avp') NOT NULL DEFAULT 'header',
+  `match_part` enum('full','username','domain','port') NOT NULL DEFAULT 'full',
+  `match_name` varchar(255) NOT NULL,
+  `expression` enum('is','contains','matches','regexp') NOT NULL,
+  `expression_negation` tinyint(1) NOT NULL DEFAULT '0',
+  `value_type` enum('input','preference','avp') NOT NULL,
+  `rwr_set_id` int(11) unsigned DEFAULT NULL,
+  `rwr_dp_id` int(11) unsigned DEFAULT NULL,
+  `enabled` tinyint(1) unsigned NOT NULL DEFAULT 1,
+  PRIMARY KEY (`id`),
+  KEY `rule_id_idx` (`rule_id`),
+  KEY `rwr_set_id_idx` (`rwr_set_id`),
+  KEY `rwr_dp_id_idx` (`rwr_dp_id`),
+  KEY `enabled_idx` (`enabled`),
+  CONSTRAINT `v_hrc_ruleid_ref` FOREIGN KEY (`rule_id`) REFERENCES `voip_header_rules` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
+  CONSTRAINT `v_hrc_rwrset_ref` FOREIGN KEY (`rwr_set_id`) REFERENCES `voip_rewrite_rule_sets` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
+);
+
+CREATE TABLE `voip_header_rule_condition_values` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `condition_id` int(11) unsigned NOT NULL,
+  `value` varchar(255) NOT NULL,
+  PRIMARY KEY (`id`),
+  KEY `condition_id_idx` (`condition_id`),
+  CONSTRAINT `v_hrcv_conditionid_ref` FOREIGN KEY (`condition_id`) REFERENCES `voip_header_rule_conditions` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+CREATE TABLE `voip_header_rule_actions` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `rule_id` int(11) unsigned NOT NULL,
+  `header` varchar(255) NOT NULL,
+  `header_part` enum('full','username','domain','port') NOT NULL DEFAULT 'full',
+  `action_type` enum('set','add','remove','rsub','header','preference') NOT NULL,
+  `value_part` enum('full','username','domain','port') NOT NULL DEFAULT 'full',
+  `value` varchar(255) DEFAULT NULL,
+  `rwr_set_id` int(11) unsigned DEFAULT NULL,
+  `rwr_dp_id` int(11) unsigned DEFAULT NULL,
+  `priority` int(11) unsigned NOT NULL DEFAULT '100',
+  `enabled` tinyint(1) unsigned NOT NULL DEFAULT 1,
+  PRIMARY KEY (`id`),
+  KEY `rule_id_idx` (`rule_id`),
+  KEY `rwr_set_id_idx` (`rwr_set_id`),
+  KEY `rwr_dp_id_idx` (`rwr_dp_id`),
+  KEY `priority_idx` (`priority`),
+  KEY `enabled_idx` (`enabled`),
+  CONSTRAINT `v_hra_ruleid_ref` FOREIGN KEY (`rule_id`) REFERENCES `voip_header_rules` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
+  CONSTRAINT `v_hra_rwrset_ref` FOREIGN KEY (`rwr_set_id`) REFERENCES `voip_rewrite_rule_sets` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
+);
+
+COMMIT;
diff --git a/db_scripts/diff/15501.down b/db_scripts/diff/15501.down
new file mode 100644
index 00000000..cfcb06cf
--- /dev/null
+++ b/db_scripts/diff/15501.down
@@ -0,0 +1,4 @@
+use provisioning;
+
+DELETE FROM voip_preferences WHERE attribute = 'header_rule_set';
+
diff --git a/db_scripts/diff/15501.up b/db_scripts/diff/15501.up
new file mode 100644
index 00000000..2a3da044
--- /dev/null
+++ b/db_scripts/diff/15501.up
@@ -0,0 +1,10 @@
+set autocommit=0;
+use provisioning;
+
+SELECT id into @vpg_id FROM voip_preference_groups where name = 'Internals';
+
+INSERT INTO voip_preferences (voip_preference_groups_id, attribute, label, type, max_occur, usr_pref, prof_pref, dom_pref, peer_pref, contract_pref, modify_timestamp, internal, expose_to_customer, data_type, read_only, description)
+VALUES
+  (@vpg_id, 'header_rule_set', "Header Rule Set", 1, 1, 1, 0, 1, 1, 0, NOW(), 0, 1, 'int', 0, 'Assign a "Header Rule Set" to manipulate SIP headers based on dynamic conditions');
+
+commit;