Here's a few options:
1) use mod_nibblebill and do the billing live. If you don't need pre payment however, this adds in complexity and doesn't provide as much of an audit trail
2) If you don't need pre-billing, set the bill-to user and the billing per minute on the leg of the call. Use something like xml_cdr to save the data - perhaps post it to a script that saves the appropriate fields. It multiplies the billing * billsec (if you want rounding, do it..) and saves the amount. Then, just sum up the billing amount. Just note: if the xml_cdr fails to post (mostly if the server dies mid-call) you won't have a record of the call. Also, this only works for post-payment.

I am available to set this up, please email me privately if you are interested.
-Avi Marcus


On Sat, Feb 26, 2011 at 2:16 AM, deniro <ayhkor@gmail.com> wrote:
Hi All
I would like to write some type of billing program  that will collect the charges for each account monthly
 
When someone calls into the  (freeswitch) conference by dialing  toll free number or local number and enters PIN number
the  program will recognize that and start collecting number of minutes and number of  persons dialed in
and calculate  the  amount of  dollars.
 
Lets say conference is  10cent/per minute /per person for a tool free number
Each time people  dial into conference it will calculate total amount by person and by minutes, and generate monthly billing.
 
The PIN numbers may be different  for conferences that belong to same account.
 
How would I do such thing? Where do I start from?
Is there any sample programs like it somewhere out there
Which language would be best to it with 
 
I would pay for any professional services
 
Thanks in advance
deniro--
 
 

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