Extract Database of calling record

Any one knows where is the file path for storing of database for all the files refer to calling record?

As now My company wants to get the calling record information and do sth related to billing. any body has good suggestion refer to billing part, but not the calling card billing, we just want to extract the database everymonth from the server and hopefully develop another billing software based on it.

Hey someone has done a access database for that

I think it was one of the guys @ trixbox forum

http://www.kennonsoft.org/

thanks so much bubba for your info, It’s really helpful.

And I also want to know the path for storing those database for call monitor, do you know?

http://www.dthsoftware.com/freepbxbilling.htm