5 Feb
2015
5 Feb
'15
7:48 p.m.
Hi Shane,
dialog_ng started as a prototype by us quite a while ago to form the basis
of dialogs in our IMS implementation using Kamailio. We took quite a lot
from the existing dialog module at the time and then built the additional
functionality on top. There were some things (like dlg_manage) that we did
not move across.... and this is bad.... so I apologise.
Right now to get a dialog recorded you need to define a flag in the
modparam:
modparam("dialog_ng", "dlg_flag", 10)
And then when you want to track a dlg do something like:
if (is_method("INVITE")) {
setflag(10);
...
}
We have had a lot of other work to focus on and haven't spent too much time
on dialog_ng but we will certainly put some effort into making it easier to
use and more complete.
Cheers
Jason
On Thu, Feb 5, 2015 at 8:03 PM, Shane Harrison <Shane.Harrison(a)imgtec.com>
wrote:
Thanks Daniel - that clarity helps. Apologies if I should have been able
to glean that from the docs - I just didn't see it in my reading. FYI,
dialog-ng has deprecated the dlg_mange() function.
Can anybody who has used or involved in writing the dialog-ng module shed
some light on what the new mechanism is for creating an early dialog
structure?
Cheers and thanks
Shane
________________________________________
From: sr-users [sr-users-bounces(a)lists.sip-router.org] on behalf of
Daniel-Constantin Mierla [miconda(a)gmail.com]
Sent: 06 February 2015 00:02
To: Kamailio (SER) - Users Mailing List
Subject: Re: [SR-Users] Using dialog_ng
Hello,
I haven't used the dialog_ng module, but (as expected based on the
dialog module) if you only set the FLT_DIALOG flag, then the dialog is
created when calling t_relay(). The dialog module has dlg_manage()
function which creates the dialog immediately, maybe that's in dialog_ng
as well.
Cheers,
Daniel
On 04/02/15 05:28, Shane Harrison wrote:
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Hi all,
I think the lack of response to my previous thread is probably because
it was too
complicated. I have now narrowed my problem down after further
archive readings .
I am trying to use the dialog_ng module along with the
ims_charging_module. Upon
reception of an INVITE, a call to the Ro_CCR()
from the request_route script is made. That function does a check that the
dialog record exists (binds to dialog module and does a "get_dlg(msg)"
call) - this fails i.e. dialog is not found.
Running kamailio 4.2.2 and relevant sections of kamailio.cfg are:
modparam("dialog_ng", "dlg_flag", FLT_DIALOG)
modparam("dialog_ng", "timeout_avp",
"$avp(DLG_TIMEOUT_AVP)")
modparam("dialog_ng", "detect_spirals", 1)
modparam("dialog_ng", "profiles_no_value", "orig ; term")
request_route {
# NAT detection
route(NATDETECT);
# Set DLG flag to track dialogs using dialog2
if (!is_method("REGISTER|SUBSCRIBE"))
setflag(FLT_DIALOG);
# handle requests within SIP dialogs
route(WITHINDLG);
### only initial requests (no To tag)
# CANCEL processing
if (is_method("CANCEL"))
{
if (t_check_trans())
t_relay();
exit;
}
t_check_trans();
if (is_method("INVITE"))
{
set_dlg_profile("orig");
Ro_CCR("CHARGING_CCR_REPLY", "orig", "SCUR",
"",
"30","CCR_location");
}
So my question is, "should the above logic create a dialog record on the
initial INVITE?" and if yes then "what possible reasons might there be for
the Ro_CCR() function not be able to detect it exists?"
Cheers
Shane Harrison
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Kamailio World Conference, May 27-29, 2015
Berlin, Germany - http://www.kamailioworld.com
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