Hi,
I would set it to a low value to make sure you avoid sending calls a Freeswitch server facing problems, in the case of Freeswitch the same GW will also handle media, if it is having hardtime repliyng to SIP OPTIONS it will very likely have problem handling the media.
It may also get worst during the call even stop responsding and loose transaction in progress or in dialog transactions later like session timers and BYEs.
Off loading it may able help other calls already using it.
You may push your strategy further thinking about :
- The risk is that you run out of GW, could be handled when ds_select is returning nothing.
- Another side effect, would be that you are sending more traffic to other GW, they must be able to handle the extra load.
In kamailio 5 there is a new algorithm that behaves better when one GW is put out of service.
“11” - use relative weight based load distribution.
You have to set the attribute 'rweight' per each address in
destination set. Active host usage probability is
rweight/(SUM of all active host rweights in destination group).
Regards
Julien