[SR-Users] SIP Routing Logic in Lua

[Daniel-Constantin Mierla]

Hello,

during last days I spent some time to extend the native API exported to 
Lua. Many more functions exported by core and modules can be called from 
embedded Lua scripts. Note that you get also access to psedo-variable 
operations and you can call all functions exported by modules that have 
no fixup pretty safe, via sr.modf(...), without a need to be exported 
natively.

I made an easy-to-do tutorial where all the SIP routing logic is 
implemented in a Lua script (including authentication, accounting, 
registrar, user location). You can read it at:

http://asipto.com/u/h

Therefore, if the configuration file language is not offering everything 
you need to route your SIP traffic, look at app_lua module and its API, 
it is a real option right now. Lua is a small and fast embeddable 
language, the interpreter is linked to and loaded by Kamailio at statup, 
therefore the performance penalty is not significant (Lua project site 
is: http://www.lua.org). It is also popular among other SIP telephony 
projects.

Any kind of feedback is appreciated!

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
Kamailio (OpenSER) Advanced Trainings
Nov 22-25, 2010, Berlin, Germany
Jan 24-26, 2011, Irvine, CA, USA
http://www.asipto.com