January 2016
Intermediate to advanced
384 pages
8h 6m
English
book
Building Telephony Systems with OpenSIPS - Second Edition
by Flavio E. Goncalves, Flavio E Goncalves, Bogdan-Andrei Iancu
Content preview from Building Telephony Systems with OpenSIPS - Second Edition
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Selecting a backend
The proxy server uses the concept of Authentication, Authorization, and Accounting (AAA). Until now, we have seen how to use a database to only authenticate and authorize users. We can use many different backends such as databases, RADIUS servers, plain text, and log files. Each backend serves a different purpose. The following table compares the most popular choices:
|
Backend |
Pros |
Cons |
|---|---|---|
|
Database |
Simple. Fast. |
Corruption in a database can lead to billing problems and missing records. |
|
RADIUS |
Separation of the billing server. Reusing the existing RADIUS infrastructure in the VoIP provider. |
It is more complex. Dictionary additions and server configurations are sometimes tricky and time-consuming. The data will end up in ... |
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