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Hi!<br>
<br>
Kamailio can count the number of calls per gateway and use the least
loaded one. Another approach, which is more reliable uses
failure-routing. This means, the load balancer chooses any of the
gateways, but if the gateway response with a certain error code, the
"failure_route" will choose the next gateway and re-sends the
request. You can do the failure routing multiple times until you ran
out of gatways.<br>
<br>
regards<br>
Klaus<br>
<br>
Am 12.03.2012 10:00, schrieb Sasa Vilic:
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<div class="moz-text-flowed" style="font-family: -moz-fixed;
font-size: 14px;" lang="x-western">Hello, <br>
<br>
I have read here about load balancing between multiple gateways
by using carrierroute module, but there is one particular
question for which I found no answer. <br>
<br>
Let's say I have two asterisk servers (X und Y), that are my
gateways to PSTN. Let we do it simple. Let's say that each
gateway supports only one outgoing call at the time and there is
no incoming calls from PSTN. Now: <br>
<br>
Bob calls one number and Kamailio uses X gateway. <br>
Alice calls other number and Kamailio uses Y gateway. <br>
Alice terminates the call. <br>
Alice place a new call, but Bob's call is still in progress. <br>
If we were used round robin algorithm, Kamailio would then use X
gateway, but X gateway is currently occupied. What shell happen
now? <br>
And what if Alice didn't tear down call ordinary? What if it her
SIP client simply crashed? (Then kamailio would think that there
is now free gateway) <br>
<br>
So the main question is: can kamailio know/detect, how much
calls are going over one particular gateway and what can be done
when limit for this gateway is reached? <br>
<br>
Thank you in advance. <br>
<br>
Kind Regards, <br>
Sasa Vilic <br>
</div>
<br>
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