use sipstats;

alter table messages
DEFAULT CHARSET=latin1,
change protocol `protocol` enum('IPv4','IPv6') NOT NULL,
change transport `transport` enum('UDP','TCP') NOT NULL,
change src_ip `src_ip` varchar(39) NOT NULL,
change dst_ip `dst_ip` varchar(39) NOT NULL,
change method `method` varchar(20) NOT NULL,
change cseq_method `cseq_method` varchar(16) NOT NULL,
change call_id `call_id` varchar(255) NOT NULL,
change request_uri `request_uri` varchar(255) NOT NULL,
change from_uri `from_uri` varchar(255) NOT NULL,
change caller_uuid `caller_uuid` varchar(255) NOT NULL,
change callee_uuid `callee_uuid` varchar(255) NOT NULL;

alter table packets DEFAULT CHARSET=latin1;