[Freeswitch-users] FS -route to next GW if the first GW full

[Steven Ayre]

If you know the number of calls the GW can handle in advance, you can limit
the call attempts before sending the call to the gateway:
http://wiki.freeswitch.org/wiki/Limit
There are several ways to use that.

You can reroute calls to a 2nd gateway on error:
http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_bridge#Implementing_Failover

There are channel variables that let you control what to consider a
reroutable error and what is a give-up error:
http://wiki.freeswitch.org/wiki/Channel_Variables#continue_on_fail
http://wiki.freeswitch.org/wiki/Channel_Variables#failure_causes
This might also be useful, particularly with mod_limit:
http://wiki.freeswitch.org/wiki/Channel_Variables#transfer_on_fail

You could use mod_lcr to get a list of all the GWs, but in a random order.
That'd let you load balance (randomly) but reroute when required without
duplicates unlike mod_distributor.

Hopefully that's enough building blocks to give you somewhere to start...

-Steve



On 20 April 2011 08:27, Charles <fieldpeak at gmail.com> wrote:

>
> i have two media GWs connected with FS for PSTN calls, FS route the first
> one in normal case, once the first GW get full (all of channels were
> occupied), i need FS route to the second GW.
> i found once the first GW get full, it will reply '404 not found' to FS,
> can FS route to the second one according to this condition or any other
> alternative?
>
> although i know there is mod_distributor for load balancing, however, i
> need if only first one full then route to second one, so it looks this
> module not suitable for this senario...
>
> Thanks.
>
> Regards,
> Charles
>
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