[SR-Users] INVITE Retransmission Causes Limiting Simultaneus Calls for Subscribers

[Bayram Karagoz]

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.
>
> --
>
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-- 
*Bayram KARAGÖZ*

*NGN Engineer*

*-----------------------------------------*

*@*   bayram at bayramkaragoz.org

*:**  *www.bayramkaragoz.org

*-----------------------------------------*
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