[OpenSIPS-Devel] E_DLG_STATE_CHANGED missing dialog information for ENDED state.
Adam Overbeeke
Adam.Overbeeke at genesys.com
Thu Mar 7 09:49:31 EST 2019
Hi Bogdan,
We are trying to access the dialog information during the event route. The function that we are using is get_dialog_vals. During my testing, I was able to get the expected parameters that was passed from the event route, but the dialog variables was returning nothing. This happens only when the state transitions to ENDED, all other states have the information. This makes me believe that the dialog was destroy.
i.e. in this example: variableOne and variableTwo are dialog variables.
event_route[E_DLG_STATE_CHANGED] {
fetch_event_params("hash_entry=$avp(eparm_hash_entry)");
fetch_event_params("hash_id=$avp(eparm_hash_id)");
fetch_event_params("callid=$avp(eparm_callid)");
fetch_event_params("from_tag=$avp(eparm_from_tag)");
fetch_event_params("to_tag=$avp(eparm_to_tag)");
fetch_event_params("old_state=$avp(eparm_old_state)");
fetch_event_params("new_state=$avp(eparm_new_state)");
if ( get_dialog_vals("$avp(d_names)","$avp(d_vals)","$avp(eparm_callid)") ) {
$var(i) = 0;
while ( $(avp(d_names)[$var(i)]) != NULL ) {
$var(k) = $(avp(d_names)[$var(i)]);
$var(v) = $(avp(d_vals)[$var(i)]);
switch($var(k)) {
case "variableOne":
#// log statement here
break;
case "variableTwo":
#// log statement here
break;
}
$var(i) = $var(i) + 1;
}
}
}
^ when the state is ENDED, get_dialog_vals returns nothing back for the dialog’s callid.
Hope it helps,
Adam
From: Bogdan-Andrei Iancu <bogdan at opensips.org>
Date: Thursday, March 7, 2019 at 5:37 AM
To: OpenSIPS devel mailling list <devel at lists.opensips.org>, Adam Overbeeke <Adam.Overbeeke at genesys.com>
Subject: Re: [OpenSIPS-Devel] E_DLG_STATE_CHANGED missing dialog information for ENDED state.
Hi Adam,
Sorry for the late reply.
How exactly are you trying to retrieve the dialog info (during the TERMINATED event) ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com<https://www.opensips-solutions.com>
OpenSIPS Summit 2019
https://www.opensips.org/events/Summit-2019Amsterdam/<https://www.opensips.org/events/Summit-2019Amsterdam/>
On 02/20/2019 04:55 PM, Adam Overbeeke wrote:
Hello all,
We are trying to use the dialog event routes and ran into some unexpected behavior. The issue is that we cannot retrieve the dialog information when the dialog state transitions to ENDED. We believe the dialog have been destroyed or removed prior to firing the event change. Is it possible to change this behavior in the synchronous case? We understand design decision for asynchronous handling but believe it should be possible to retrieve the information in the synchronous case.
If our assumptions are incorrect, we are open to ideas on how we could get the dialog information during the ENDED state. We are considering using a local cache in the meantime, but that will duplicate a lot of information in our system. My hopes are that we are just missing some function call. We appreciate your help/response.
Thanks,
Adam
Adam Overbeeke
Lead Voice Network Engineer, PureCloud
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