I am looking for a freelancer who have voip knowledge.
I have a customer who needs to invoice CDR's produced by his telco unit.
CDR's are in form of flat files (CSV) pretty well documented
Rate plans are in XLS and can easily be exported to CSV.
They DO NOT need a Asterisk or any other PABX just the billing.
Would it be possible for you to implement on one of my Linux system an open source such as ASTPP or Vbilling or a2billing and setup the import of the CDR's ???
What would be the estimate time needed for this job ?
Thanks and regards,