SET autocommit=0;
USE provisioning;

ALTER TABLE `provisioning`.`voip_peer_groups`
  DROP FOREIGN KEY `vpg_time_set_ref`,
  DROP COLUMN `time_set_id`;

DROP TABLE `provisioning`.`voip_time_periods`;

DROP TABLE `provisioning`.`voip_time_sets`;

DROP VIEW `provisioning`.`v_time_sets_ical`;

COMMIT;