ALTER TABLE provisioning.voip_preferences MODIFY COLUMN `type` tinyint(3) NOT NULL default 0;
ALTER TABLE provisioning.voip_preferences ADD COLUMN `data_type` enum('bool','int','string') NOT NULL default 'string';

UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'block_in_mode';
UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'block_in_clir';
UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'block_out_mode';
UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'adm_block_in_mode';
UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'adm_block_in_clir';
UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'adm_block_out_mode';
UPDATE provisioning.voip_preferences SET data_type = 'bool' where attribute = 'clir';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'lock';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'ringtimeout';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'ncos_id';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'adm_ncos_id';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'dp_dom_caller_in';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'dp_dom_callee_in';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'dp_dom_caller_out';
UPDATE provisioning.voip_preferences SET data_type = 'int' where attribute = 'dp_dom_callee_out';