Hello,

On 4/8/11 12:28 AM, Alejandro Rios P. wrote:

Hi all,

I am testing the scenario described here: http://kb.asipto.com/asterisk:realtime:kamailio-3.1.x-asterisk-1.6.2-astdb

It works great with one instance of Asterisk, but now that I'm testing with two Asterisk instances to load balance, and I see a problem regarding the registration forwarding to the second Asterisk.

I tried adding a second "uac_req_send()" bellow the first one, but Kamailio only sends the first request and the REGISTER never gets to the second Asterisk:

# Forward REGISTER to Asterisk route[REGFWD] { if(!is_method("REGISTER")) { return; } $var(rip) = $sel(cfg_get.asterisk.bindip); $uac_req(method)="REGISTER"; $uac_req(ruri)="sip:" + $var(rip) + ":" + $sel(cfg_get.asterisk.bindport); $uac_req(furi)="sip:" + $au+ "@" + $var(rip); $uac_req(turi)="sip:" + $au+ "@" + $var(rip); $uac_req(hdrs)="Contact:<sip:" + $au+ "@" + $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport) + ">\r\n"; if($sel(contact.expires) != $null) $uac_req(hdrs)= $uac_req(hdrs) + "Expires:" + $sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires:" + $hdr(Expires) + "\r\n"; uac_req_send();

     $uac_req(all) = null;

$var(rip2) = $sel(cfg_get.asterisk2.bindip); $uac_req(method)="REGISTER"; $uac_req(ruri)="sip:" + $var(rip2) + ":" + $sel(cfg_get.asterisk2.bindport); $uac_req(furi)="sip:" + $au+ "@" + $var(rip2); $uac_req(turi)="sip:" + $au+ "@" + $var(rip2); $uac_req(hdrs)="Contact:<sip:" + $au+ "@" + $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport) + ">\r\n"; if($sel(contact.expires) != $null) $uac_req(hdrs)= $uac_req(hdrs) + "Expires:" + $sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires:" + $hdr(Expires) + "\r\n"; uac_req_send();

}

I also tried appending another branch and sending the second uac_req_send() from there, but it is not being sent.

How can I use uac_req_send() several times for the same request or in parallel?

it should work one after the other. append_branch() does not affect uac_req_send() at all, this is a separate request built from scratch.

Do you get any error message in the syslog? Can you watch the traffic on all interfaces 'ngrep -d any -qt -W byline port 5060' ?

I see you assign '$uac_req(all) = null;', it should be '$uac_req(all) = $null;' - but I guess it was a copy&paste thing.

Cheers, Daniel