db-schema/db_scripts/diff/15877.down

USE provisioning;
SET autocommit=0;

SELECT id FROM voip_preferences where attribute='inbound_uprn' INTO @pref_id;

DELETE from voip_preferences_enum WHERE preference_id = @pref_id and value = 'original/npn';
DELETE from voip_preferences_enum WHERE preference_id = @pref_id and value = 'original/upn';

COMMIT;