17 Oct
2014
17 Oct
'14
7:33 p.m.
Hello. I try to do parallel fork calls to endpoints that have same
username and different destination URI. Logic of my script:
checking location table for rows with needed account
get info from contact at loop
for every step
check technology (sip or ws)
append_branch with existing destination for this account
rewrite packet with rtpengine to needed technology
forward packets via t_relay
sql_query("ca", "select contact from location where
username='$tU'", "ra");
xlog("rows: $dbr(ra=>rows) cols: $dbr(ra=>cols)\n");
if($dbr(ra=>rows)>0){
$var(i)=0;
while($var(i)<$dbr(ra=>rows)){
xlog("L_INFO","SQL query return contact {$dbr(ra=>[$var(i),0])} for
{$tU}
at step {$var(i)}\n");
if ($dbr(ra=>[$var(i),0])=~"transport=ws"){
xlog("L_INFO", "This is a Websocket call to endpoint");
sql_pvquery("ca", "select received from location where
contact='$dbr(ra=>[$var(i),0])'","$var(recieved)");
xlog("L_INFO","SQL query return recieved {$var(recieved)} for
{$tU}\n");
$du=$var(recieved);
xlog("L_INFO", "Request going FROM ASTERISK to WS. Destination is
{$du}\n");
xlog("L_INFO","Websocket Destination URI is {$var(recieved)} for
{$tU}\n");
rtpproxy_manage("froc+SP");
t_on_reply("REPLY_FROM_WS");
append_branch("sip:$tU@$du");
$var(i) = $var(i) + 1;
}
else
{
xlog("L_INFO", "This is a classic UDP call to endpoint");
$du="sip:"+$(dbr(ra=>[$var(i),0]){s.select,1,@});
xlog("L_INFO","Classic Destination URI is {$dbr(ra=>[$var(i),0])} for
{$tU}\n");
rtpproxy_manage("co");
t_on_reply("MANAGE_CLASSIC_REPLY");
append_branch("sip:$tU@$du");
$var(i) = $var(i) + 1;
}
#append_branch("sip:$tU@$du");
}
}
return 1;
So it customised schema of standart example
seturi("sip:a@example.com");
append_branch("sip:b@example.com");
append_branch("sip:c@example.com");
append_branch("sip:d@example.com");
t_relay();
At my test I have 2 endpoints with WS and UDP phones (at fist step ir WS
and 2 step it UDP). when I do these steps (at my script) I see packet at
TCP dump and saw that sended only one packet to UDP but body of packet is
WS. Then I saw log of kamailio. I see that at second step packet changed
body to WS body (so strange because other steps before and after goes for
UDP (as at logic of script))
What I need to do for send parallel INVITES to multiple endpoints
correctly? Thanks