[SR-Users] Fwd: INVITE Retransmission Causes Limiting Simultaneus Calls for Subscribers
Bayram Karagoz
karagoz.bayram at gmail.com
Tue Feb 12 10:30:36 CET 2013
---------- Forwarded message ----------
From: Bayram Karagoz <karagoz.bayram at gmail.com>
Date: 2013/2/12
Subject: Re: [SR-Users] INVITE Retransmission Causes Limiting Simultaneus
Calls for Subscribers
To: miconda at gmail.com
Cc: "SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users
Mailing List" <sr-users at lists.sip-router.org>
recheck config and saw that I used dlg_manage() most before route(QUOTA)
block. does it sits in the wrong place?
you can find my kamailio.cfg file in attachment also.
# account only INVITEs
* dlg_manage();*
if (is_method("INVITE"))
{
setflag(FLT_ACC); # do accounting
}
###Display Name manipulation###
if (is_method("INVITE") && ($fn != $fU)) {
uac_replace_from("$fU","");
}
### incoming call from SBC###
route(INCOMINGSBC);
###Suspend User###
route(SUSPEND);
### Concurrent Call Limitation Routing Block ###
* route(QUOTA);*
2013/2/12 Daniel-Constantin Mierla <miconda at gmail.com>
> 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>
>
>> 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>
>>
>>> 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
>>> from_uri:: sip:02165151057 at xxx.xxx.xxx.xxx
>>> from_tag:: 3569384775-474868
>>> caller_contact:: sip:02165151057 at 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>
>>>
>>>> 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
>>>
>>> *:** *www.bayramkaragoz.org
>>>
>>> *-----------------------------------------*
>>>
>>
>>
>>
>> --
>> *Bayram KARAGÖZ*
>>
>> *NGN Engineer*
>>
>> *-----------------------------------------*
>>
>> *@* bayram at bayramkaragoz.org
>>
>> *:** *www.bayramkaragoz.org
>>
>> *-----------------------------------------*
>>
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/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
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>
>
> --
> *Bayram KARAGÖZ*
>
> *NGN Engineer*
>
> *-----------------------------------------*
>
> *@* bayram at bayramkaragoz.org
>
> *:** *www.bayramkaragoz.org
>
> *-----------------------------------------*
>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio World Conference, April 16-17, 2013, Berlin
> - http://conference.kamailio.com -
>
>
--
*Bayram KARAGÖZ*
*NGN Engineer*
*-----------------------------------------*
*@* bayram at bayramkaragoz.org
*:** *www.bayramkaragoz.org
*-----------------------------------------*
--
*Bayram KARAGÖZ*
*NGN Engineer*
*-----------------------------------------*
*@* bayram at bayramkaragoz.org
*:** *www.bayramkaragoz.org
*-----------------------------------------*
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