[SR-Users] INVITE Retransmission Causes Limiting Simultaneus Calls for Subscribers
Daniel-Constantin Mierla
miconda at gmail.com
Tue Feb 12 10:16:57 CET 2013
Where do you use dlg_manage()? It is not in the route you pasted below.
Cheers,
Daniel
On 2/12/13 10:12 AM, Bayram Karagoz wrote:
> Thanks for quick response Daniel,
>
> My kamailio version is 3.2.3 (x86_64/linux) .
> I want to use dlg_manage() before but not sure which side of my call
> limitation route code block.
> can you advise me where to use dlg_manage() in my routing?
> here is my route block defined below;
>
>
> route[QUOTA] {
>
> if (is_method("INVITE") && $fU == $avp(s:username)) {
>
> avp_db_query("select quota from subscriber where
> username='$avp(s:username)'", "$avp(s:quota)");
>
> $var(SIZE) = 0;
> get_profile_size("callquota", "$avp(s:username)", "$var(SIZE)");
> xlog("L_INFO", "CALL_KAMAILIO:Call originated from =
> $fd\n");
> xlog("L_INFO", "Active call amount for $fU is
> $var(SIZE) , call-id=$ci, quota=$avp(s:quota)\n");
> if( $var(SIZE) >= $avp(s:quota) ){
> sl_send_reply("403", "Simultaneous calls limit reached");
> xlog("L_INFO", "QUOTA:Limit of $var(SIZE) active calls
> has been reached for user=$avp(s:username), call-id=$ci,
> quota=$avp(s:quota)\n");
> exit;
> }
> set_dlg_profile("callquota","$avp(s:username)");
> }
> }
>
>
> 2013/2/12 Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>
>
> Hello,
>
> what version of kamailio are you using?
>
> State 1 is for dialogs that were not relayed (or they haven't
> received any reply yet). That means you create the dialog and
> don't relay the INVITE. Try to us dlg_manage() just before
> relaying the INVITE.
>
> Cheers,
> Daniel
>
>
> On 2/12/13 9:37 AM, Bayram Karagoz wrote:
>> Hi,
>>
>> is there any advise about my problem?
>> I'm using kamailio in my production environment and this issue
>> started to reproduce a lot.
>> is there any way to discard retransmitted INVITE messages from
>> counting dialog?
>>
>>
>> 2013/2/9 Bayram Karagoz <karagoz.bayram at gmail.com
>> <mailto:karagoz.bayram at gmail.com>>
>>
>> thanks for the response Daniel,
>>
>> has_totag not solved my problem.
>>
>> in a deep search I realized that these retransmission INVITE
>> dialogs are waiting in dialog list as state = 1. one example
>> is below;
>> is there any way to clear these dialog which state is waiting
>> for state = 1 or any other solution is welcome for me?
>>
>> dialog:: hash=246:499719317
>> state:: 1
>> ref_count:: 1
>> timestart:: 0
>> timeout:: 0
>> callid::
>> 1356619-3569384775-474862 at GBSBC-1.mydomain.com
>> <mailto:1356619-3569384775-474862 at GBSBC-1.mydomain.com>
>> from_uri:: sip:02165151057
>> <tel:02165151057>@xxx.xxx.xxx.xxx
>> from_tag:: 3569384775-474868
>> caller_contact:: sip:02165151057
>> <tel:02165151057>@xxx.xxx.xxx.xxx:5060
>> caller_cseq:: 2
>> caller_route_set::
>> caller_bind_addr:: udp:xxx.xxx.xxx.xxx:5060
>> callee_bind_addr::
>> to_uri:: sip:4115667 at xxx.xxx.xxx.xxx
>> to_tag::
>> callee_contact::
>> callee_cseq::
>> callee_route_set::
>>
>>
>>
>>
>> 2013/2/4 Daniel Tryba <daniel at pocos.nl <mailto:daniel at pocos.nl>>
>>
>> On Sunday 03 February 2013 12:58:02 Bayram Karagoz wrote:
>> > I'm trying to limit all subscriber's active call
>> according to setting their
>> > simultaneous use setting defined in database.
>> > But having problem when one subscriber's INVITE message
>> goes to
>> > retransmission. When retranmission occures INVITE
>> messages don't complete
>> > with BYE and subscriber simultaneus use amount will hung.
>> > My example code block is below.
>> > Does anyone advice me for overcome INVITE retransmissions?
>>
>> I haven't implemented it myself yet, but all examples
>> I've seen check for
>> !has_totag() in the INVITE when doing call limit
>> accounting. So
>> if (is_method("INVITE") && $fU == $avp(s:username) &&
>> !has_totag())
>> in your case. But that only works if the device received
>> the initial 100
>> Trying with a tag from Kamailio.
>>
>> But might it not be better to just do the count in the
>> INVITE and
>> adding/deleting of dialogs in the dialog event routes?
>> http://kamailio.org/docs/modules/stable/modules_k/dialog.html#id2556156
>> Problem here is that if the limit is 5 and and there are
>> more than 5
>> concurrent INVITES you'd have to drop calls with a 200 OK
>> response.
>>
>> --
>>
>> POCOS B.V. - Croy 9c - 5653 LC Eindhoven
>> Telefoon: 040 293 8661 - Fax: 040 293 8658
>> http://www.pocos.nl/ - http://www.sipo.nl/
>> K.v.K. Eindhoven 17097024
>>
>>
>>
>>
>> --
>> *Bayram KARAGÖZ*
>>
>> *NGN Engineer*
>>
>> *-----------------------------------------*
>>
>> *@*bayram at bayramkaragoz.org <mailto:bayram at bayramkaragoz.org>
>>
>> *:***www.bayramkaragoz.org <http://www.bayramkaragoz.org/>
>>
>> *-----------------------------------------*
>>
>>
>>
>>
>> --
>> *Bayram KARAGÖZ*
>>
>> *NGN Engineer*
>>
>> *-----------------------------------------*
>>
>> *@*bayram at bayramkaragoz.org <mailto:bayram at bayramkaragoz.org>
>>
>> *:***www.bayramkaragoz.org <http://www.bayramkaragoz.org/>
>>
>> *-----------------------------------------*
>>
>>
>>
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>
> --
> Daniel-Constantin Mierla -http://www.asipto.com
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
> Kamailio World Conference, April 16-17, 2013, Berlin
> -http://conference.kamailio.com -
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
> list
> sr-users at lists.sip-router.org <mailto:sr-users at lists.sip-router.org>
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>
>
>
>
> --
> *Bayram KARAGÖZ*
>
> *NGN Engineer*
>
> *-----------------------------------------*
>
> *@*bayram at bayramkaragoz.org <mailto:bayram at bayramkaragoz.org>
>
> *:***www.bayramkaragoz.org <http://www.bayramkaragoz.org/>
>
> *-----------------------------------------*
>
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, April 16-17, 2013, Berlin
- http://conference.kamailio.com -
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