ALTER TABLE `provisioning`.`autoprov_devices` CHANGE COLUMN `bootstrap_method` `bootstrap_method` ENUM('http', 'redirect_panasonic', 'redirect_yealink', 'redirect_polycom', 'redirect_snom', 'redirect_grandstream', 'redirect_sipwise', 'profile_sipwise', 'redirect_ale', 'none') NULL DEFAULT 'http' ;