Enable day wise CDR push on freepbx

Hi,
I’m using elastix free pbx. I have planned to intigrade a billing system with my PBX. I need to push CDRs to that billing system as day wise CDR file. Please help me with the process. version info as below:

Kernel
Linux(x86_64)-2.6.18-371.1.2.el5

Elastix
elastix-2.4.0-8
elastix-a2billing-1.9.4-5
elastix-addons-2.4.0-10
elastix-agenda-2.4.0-14
elastix-asterisk-sounds-1.2.3-1
elastix-email_admin-2.4.0-6
elastix-endpointconfig2-2.4.0-2
elastix-extras-2.4.0-5
elastix-fax-2.4.0-4
elastix-firstboot-2.4.0-4
elastix-framework-2.4.0-19
elastix-im-2.4.0-2
elastix-my_extension-2.4.0-6
elastix-pbx-2.4.0-18
elastix-portknock-0.0.1-0
elastix-reports-2.4.0-10
elastix-security-2.4.0-9
elastix-system-2.4.0-13

RoundCubeMail
RoundCubeMail-0.3.1-12

Mail
postfix-2.3.3-6.el5
cyrus-imapd-2.3.7-12.el5_7.2

IM
openfire-3.7.1-1

FreePBX
freePBX-2.11.0-17

Asterisk
asterisk-11.13.0-0
asterisk-perl-1.03-0
asterisk-addons-11.13.0-0

FAX
hylafax-4.3.10-2rhel5
iaxmodem-1.2.0-2

DRIVERS
dahdi-2.10.0.1-0
rhino-0.99.6-3.b4
wanpipe-util-7.0.10-2

OK - how about telling us which billing system.

As far as pushing CDR information, you can easily do that by either setting up your billing system to use the existing CDR database (and setting up a MySQL/ODBC CDR database) or you can export the CDR CSV files on a daily basis from the /var/spool/asterisk/cdr-csv (I think) files.