[asterisk-users] LCR in Asterisk

[Tilghman Lesher]

On Tuesday 12 February 2008 23:14:58 Alex Balashov wrote:
> Rizwan Hisham wrote:
> > Hi all,
> > I am planning to implement LCR routing on my already running asterisk
> > server. Uptill now i have found out that asterisk has no support for
> > lcr, i have to do something about it myself, for example using the AGI.
> > Im looking for ideas here. Whats the best way to start implementing lcr
> > in asterisk. Should i use agi and start implementing my own lcr script
> > or is there any plugin available which can be used with asterisk.
>
> If you are interested in prebuilt solutions, you may consider
> TransNexus's NexOSS product (www.transnexus.com).  The Open Settlement
> Protocol (OSP) they implemented can be used with Asterisk - they have a
> module.  In fact, I am not sure about the commercial status of the OSP
> module as such;  it may be possible to get it free of charge.  Not sure.
>   But OSP is an open protocol, so perhaps it's possible.
>
> Otherwise, I would think that the best way to approach this would be to
> make it fully outboard and divest it of Asterisk.  Implement a SIP proxy
> that forwards to providers using LCR decisionmaking, and just have
> Asterisk send calls to it.  OpenSER can be used for this - and indeed,
> there is an OSP module for it as well, if you wanted to go that route.
>
> If you're dead-set on doing it in Asterisk and don't want to do OSP, I
> would suggest FastAGI.  Definitely don't implement the logic in the dial
> plan, at any cost.

Uh, why not?  You can do LCR quite easily in the dialplan, by using func_odbc
for each of the provider lookups, then use SORT() to get the lowest cost.
It's quite easy, and you do not need to resort to AGI.

-- 
Tilghman