Asterisk incoming call routing based on caller ID

gistfile1.txt

exten => s,1,Answer
    same=> n,NoOp("Caller ID IS: ${CALLERID(name)}")
    same => n,MYSQL(Connect connid 127.0.0.1 root root asteriskdb)
    same => n,MYSQL(Query resultid ${connid} SELECT name,ban FROM directory WHERE number='${CALLERID(name)}')
    same => n,MYSQL(Fetch fetchid ${resultid} name ban)
    same => n,NoOp("We found: ${name} ${ban}")
    same => n,MYSQL(Clear ${resultid})
    same => n,MYSQL(Disconnect ${connid});
    same => n,Set(CALLERID(name)=${name})
    same => n,NoOp()
    same => n,GotoIf($["${ban}" = "1"]?banext,s,1)
    same => n,Goto(mainmenu,s,1)

[banext]
exten => s,1,Answer()
    same => n,Playback(hello-world)
    same => n,Set(MONITOR_FILENAME=/var/spool/asterisk/monitor/conf_${STRFTIME(${EPOCH},,%Y%m%d-%H%M%S)}-${CALLERID(name)}-${EXTEN})
    same => n,Monitor(wav,${MONITOR_FILENAME})
    same => n,Playback(/usr/share/asterisk/sounds/ru/tt-allbusy)
    same => n,MusicOnHold(,20)

[mainmenu]
exten => _X.,Noop()
    same => n,Hangup()
    
    

Database scheme 

mysql> describe directory;
+--------+--------------+------+-----+---------+-------+
| Field  | Type         | Null | Key | Default | Extra |
+--------+--------------+------+-----+---------+-------+
| id     | int(11)      | YES  |     | NULL    |       |
| number | varchar(100) | YES  |     | NULL    |       |
| name   | varchar(100) | YES  |     | NULL    |       |
| ban    | int(11)      | YES  |     | NULL    |       |
+--------+--------------+------+-----+---------+-------+
4 rows in set (0.00 sec)

mysql> show create table directory;
+-----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table     | Create Table                                                                                                                                                                                          |
+-----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| directory | CREATE TABLE `directory` (
  `id` int(11) DEFAULT NULL,
  `number` varchar(100) DEFAULT NULL,
  `name` varchar(100) DEFAULT NULL,
  `ban` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
+-----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)