USE provisioning;

alter table `voip_preferences` drop column `dynamic`;
alter table `voip_preferences` drop column `fielddev_pref`;
alter table `voip_preferences_enum` drop column `fielddev_pref`;
DROP TABLE voip_preference_relations;
DROP TABLE voip_fielddev_preferences;
DROP TRIGGER provisioning.voip_pref_icheck_trig;
DROP TRIGGER provisioning.voip_pref_ucheck_trig;