Nibblebill

mod_nibblebill is a credit/debit module for FreeSWITCH. The module was initially written by Darren Schreiber to fill the gaps of a professional grade trunking system that lacked the ability to detect fraud real-time. Its purpose is to allow real-time debiting of credit or cash from a database while calls are in progress. Darren had the following goals:

• Debit credit/cash from accounts real-time

• Allow for billing at different rates during a single call

• Allow for warning callers when their balance is low (via audio, in-channel)

• Allow for disconnecting or re-routing calls when balance is depleted

• Allow billing functions listed above to operate with multiple concurrent calls

Use cases

mod_nibblebill can be used in a variety of use cases, some of which are listed below.

Billing (pre-pay)

You can allow people to put cash into an account and "nibble" away at it. In addition, when callers have almost depleted their account, a tone or other message can play (or another action can occur...