describe voicemail_messages;
+----------------+--------------+------+-----+---------+-------+
| Field          | Type         | Null | Key | Default | Extra |
+----------------+--------------+------+-----+---------+-------+
| dir            | varchar(255) | NO   | PRI | NULL    |       |
| msgnum         | int(11)      | NO   | PRI | NULL    |       |
| context        | varchar(80)  | YES  |     | NULL    |       |
| macrocontext   | varchar(80)  | YES  |     | NULL    |       |
| callerid       | varchar(80)  | YES  |     | NULL    |       |
| origtime       | int(11)      | YES  |     | NULL    |       |
| duration       | int(11)      | YES  |     | NULL    |       |
| recording      | longblob     | YES  |     | NULL    |       |
| flag           | varchar(30)  | YES  |     | NULL    |       |
| category       | varchar(30)  | YES  |     | NULL    |       |
| mailboxuser    | varchar(30)  | YES  |     | NULL    |       |
| mailboxcontext | varchar(30)  | YES  |     | NULL    |       |
| msg_id         | varchar(40)  | YES  |     | NULL    |       |
+----------------+--------------+------+-----+---------+-------+
13 rows in set (0.00 sec)