[OpenSIPS-Users] How to limit channel on bunch of called DIDs?
Johnson Pajayat
cmpajayat at gmail.com
Thu Jan 7 06:27:49 CET 2010
Hello Bogdan,
I appreciate a lot your response regarding my inquiry. I've been reading
that tutorial as well as the AVPops and dialog modules documentation for
about a month now. I tried to adapt that route block for inbound calls and
here's a portion of what I have on our OpenSIPS 1.5 config file:
-------------------------------------------------------------------------------
modparam("dialog", "dlg_flag", 4)
modparam("dialog", "profiles_with_value", "inbound")
......
} else if (uri=~"sip:1234567890 at .*") {
route(3);
rewritehost("111.222.111.222");
.......
route[3]
{
## have we done our checking on this call?
if(!isflagset(31))
{
# user has max channel limit set as preference
if(is_avp_set("$avp(s:channels)/n") &&
avp_check("$avp(s:channels)", "gt/i:0"))
{
# get the current calls for DID
get_profile_size("inbound","$tU","$var(calls)");
# check within limit
if($avp(s:channels) > $var(calls))
{
xlog("L_INFO", "Call control: DID '$tU'
currently has
'$var(calls)' of '$avp(s:channels)'
active calls before this one\n");
$var(setprofile) = 1;
}
else
{
xlog("L_INFO", "Call control: DID '$tU'
channel limit exceeded [$var(calls)/$avp(s:channels)]
\n");
send_reply("487", "Request Terminated:
Channel limit exceeded\n");
exit;
}
}
else
{
$var(setprofile) = 0;
}
call_control();
switch ($retcode)
{
case 2:
# Call with no limit
case 1:
# Call with a limit under callcontrol
management (either prepaid or postpaid)
break;
case -1:
# Not enough credit (prepaid call)
xlog("L_INFO", "Call control: not enough
credit for prepaid call\n");
acc_rad_request("402");
sl_send_reply("402", "Not enough credit");
exit;
break;
case -2:
# Locked by call in progress (prepaid call)
xlog("L_INFO", "Call control: prepaid call
locked by another call in progress\n");
acc_rad_request("403");
sl_send_reply("403", "Call locked by another
call in progress");
exit;
break;
default:
# Internal error (message parsing,
communication, ...)
xlog("L_INFO", "Call control: internal
server error\n");
acc_rad_request("500");
sl_send_reply("500", "Internal server
error");
exit;
}
if($var(setprofile) > 0)
{
create_dialog();
set_dlg_profile("inbound","$tU");
}
## mark checking done
setflag(31);
}
}
----------------------------------------------------------------
And here are the logs appearing on /var/log/messages:
Jan 6 05:53:22 opensips cdrtool[20998]: MaxSessionTime Duration=36000
CallId=28a35ce1-4d7a175-25a58684 at 124.123.234.229 From=si
p:12135551234 at 124.123.234.229
<p%3A12135551234 at 124.123.234.229>Gateway=124.123.234.229
To=sip:1234567890 at 124.123.234.241:5060
;user=phone
Jan 6 05:53:22 opensips cdrtool[20998]: MaxSessionTime=unlimited
Type=postpaid CallId=28a35ce1-4d7a175-25a58684 at 124.123.234.229 BillingParty=
12135551234 at 124.123.234.229
Jan 6 05:53:22 opensips call-control[21263]: Call id
28a35ce1-4d7a175-25a58684 at 64.77.234.229 of 12135551234 at 124.123.234.229 to
sip:1234567890 at 124.123.234.241:5060;user=phone is postpaid not limited
Jan 6 05:53:22 opensips /usr/local/sbin/opensips[1636]: new branch at
sip:1234567890 at 111.222.111.222:5060;user=phone
Jan 6 05:53:22 opensips /usr/local/sbin/opensips[1640]: incoming reply
Jan 6 05:53:22 opensips /usr/local/sbin/opensips[1636]: incoming reply
Jan 6 05:53:22 opensips /usr/local/sbin/opensips[1636]: ACC: transaction
answered: timestamp=1262786002;method=INVITE;from_t
ag=14fe61da-25a58684-e5ea4d40;to_tag=as6a53f46c;call_id=
28a35ce1-4d7a175-25a58684 at 64.77.234.229;code=200;reason=OK
Jan 6 05:53:22 opensips /usr/local/sbin/opensips[1637]: Recive call
variable : <null> <null>
As for the channels limit value, do I have to define it on usr_preferences
table? I have these records on the said table:
mysql> select * from usr_preferences;
+----+------+------------+--------+---------------+------+------------+---------------------+
| id | uuid | username | domain | attribute | type | value |
last_modified |
+----+------+------------+--------+---------------+------+------------+---------------------+
| 1 | | 1234567890 | | channels | 0 | 3 |
1900-01-01 00:00:01 |
| 2 | | 0 | | called_number | 0 | 12135551234 |
1900-01-01 00:00:01 |
+----+------+------------+--------+---------------+------+------------+---------------------+
2 rows in set (0.00 sec)
Unfortunately, I'm not quite sure on what section or portion of opensips.cfg
file I will have to put the loading of user preferences to the AVPs. Any
inputs or suggestions will be greatly appreciated?
Thank you very much.
--conpaj--
On Wed, Jan 6, 2010 at 11:26 PM, Bogdan-Andrei Iancu <bogdan at voice-system.ro
> wrote:
> Hi Johnson,
>
> The idea is to use dialog profiles to keep trace of the ongoing calls
> (per resource). As a first step take a look at the following tutorial:
>
> http://www.opensips.org/Resources/DocsTutConcurrentCalls
>
> Regards,
> Bogdan
>
> Johnson Pajayat wrote:
> > Hi!
> >
> > I'm a newbie with OpenSIPS administration and configuration and I
> > searched on the mail archives regarding limiting the channels but only
> > found the site regarding "Concurrent calls limitation". I've been
> > trying to grasp the whole idea about AVPops and dialog module but
> > unfortunately I'm having a hard time understanding it. If ever, does
> > anyone here be kind enough to point me to any available documents or
> > sample configurations file that will help me limit the channels on
> > inbound calls to a single or group of DIDs? Implementation will be
> > done static first and hopefully once I got the whole idea, will be
> > implementing a dynamic one.
> >
> > Thank you very much.
> >
> > --conpaj--
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.opensips.org
> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >
>
>
> --
> Bogdan-Andrei Iancu
> www.voice-system.ro
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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