Fail2ban not working

I am using Vicibox 5.0.3 Preload x64 instance. Vicidial 2.8b0.5, SVN version 2040.
VERSION: 2.8-417a
BUILD: 131019-0849
I have installed fail2ban and added a jail called asterisk-iptables but it doesn't seem to work. It seems that there is no service /etc/init.d/fail2ban. There is a command called fail2ban-server which when run shows the following:
2014-04-14 04:47:07,342 fail2ban.server [12704]: INFO Starting Fail2ban v0.8.12
2014-04-14 04:47:07,342 fail2ban.server [12704]: INFO Starting in daemon mode
But there are no rules added in iptables. I tried to test using a soft phone with incorrect credentials and my IP was not banned. Following is my jail config. I am using stock filter.d/asterisk.conf
[asterisk-iptables]
# if more than 4 attempts are made within 6 hours, ban for 24 hours
enabled = true
filter = asterisk
action = iptables-allports[name=ASTERISK, protocol=all]
sendmail[name=ASTERISK, dest=xxx@gmail.com,
sender=fail2ban@xyz.abc.com]
logpath = /var/log/asterisk/messages
maxretry = 4
findtime = 21600
bantime = 86400
Please advise how I can get Fail2ban working.
VERSION: 2.8-417a
BUILD: 131019-0849
I have installed fail2ban and added a jail called asterisk-iptables but it doesn't seem to work. It seems that there is no service /etc/init.d/fail2ban. There is a command called fail2ban-server which when run shows the following:
2014-04-14 04:47:07,342 fail2ban.server [12704]: INFO Starting Fail2ban v0.8.12
2014-04-14 04:47:07,342 fail2ban.server [12704]: INFO Starting in daemon mode
But there are no rules added in iptables. I tried to test using a soft phone with incorrect credentials and my IP was not banned. Following is my jail config. I am using stock filter.d/asterisk.conf
[asterisk-iptables]
# if more than 4 attempts are made within 6 hours, ban for 24 hours
enabled = true
filter = asterisk
action = iptables-allports[name=ASTERISK, protocol=all]
sendmail[name=ASTERISK, dest=xxx@gmail.com,
sender=fail2ban@xyz.abc.com]
logpath = /var/log/asterisk/messages
maxretry = 4
findtime = 21600
bantime = 86400
Please advise how I can get Fail2ban working.