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Building Telephony Systems with OpenSIPS 1.6 by Flavio E. Goncalves

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Where we are

We are going to work on the billing side of the solution. The proxy is working fine, completing calls between users and gateways. However, we are not billing the calls. Billing is a two-step process:

In the first place, you have to determine the duration of the call. This is done using RADIUS or MySQL. The next step is to determine the price of that single call.

Where we are

VoIP provider architecture

The VoIP server uses the concept of Authentication, Authorization, and Accounting (AAA). Until now, we have used only MySQL to authenticate and authorize users. We can use MySQL or RADIUS to store the accounting data. It is easier to work with a RADIUS ...

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