[SR-Users] Problem faced when Using Kamaiio as Session Refresher

[Daniel-Constantin Mierla]

Hello,

are you looking for Kamailio to send re-INVITEs? If yes, that is not
available as a feature of dialog module.

Cheers,
Daniel

On 21.03.20 10:39, harneet singh wrote:
> Hi,
>
> I am fairly new to Kamailio and had a question regarding how to use
> Kamailio to enable Session refresh functionality when Kamailio is
> acting as Sip Stateful Proxy. 
> Kamailio Version used: *5.3.2* with *Call Load based routing* using
> the *dispatcher *module.
>
>
> * From what i understand from the documentation, Kamailio will
> probably not be acting as a session refresher, but Kamailio can tear
> down the call in case session refresh is negotiated, between the
> caller and the callee(via Kamailio Sip Proxy), and no message
> exchange happens in the duration set in Session-Expires header. *Is my
> understanding correct?*
> *
> *
> ** *I believe the above functionality is possible by using the *sst*
> and *dialog* module. I have set the same according to the
> documentation but I keep getting the following error:
> "dialog [dlg_handlers.c:681]: *get_dlg_timeout(): invalid AVP value,
> using default timeout*"
> Can someone share a working example?
>
> * When i tried hardcoding the timeout value by setting the timeout_avp
> to a specific value, Kamailio did sense a timeout and hence sent a BYE
> towards the caller and the Callee side both(which is what the
> requirement is), however, i do see the *dialog is still not cleared*
> in the "kamcmd dispatcher.list". Output excerpt below for reference:
>
> [root at CPaaSVM ~]# kamcmd dispatcher.list
> {
>         NRSETS: 1
>         RECORDS: {
>                 SET: {
>                         ID: 1
>                         TARGETS: {
>                                 DEST: {
>                                         URI:
> sip:172.27.44.121:5080;transport=tcp
>                                         FLAGS: AP
>                                         PRIORITY: 0
>                                         ATTRS: {
>                                                 BODY:
> duid=sample-cas;maxload=1000
>                                                 DUID: sample-cas
>                                                 MAXLOAD: 1000
>                                                 WEIGHT: 0
>                                                 RWEIGHT: 0
>                                                 SOCKET:
>                                         }
>                                         LATENCY: {
>                                                 AVG: 111.304000
>                                                 STD: 1042.193000
>                                                 EST: 2.385000
>                                                 MAX: 9999
>                                                 TIMEOUT: 1
>                                         }
>                                         RUNTIME: {
>                                                 DLGLOAD: *1*
>                                         }
>                                 }
>                         }
>                 }
>         }
> }
>
> It is noteworthy that in case the BYE is initiated by either the
> caller or the callee, the dialog is cleared properly and the DLGLOAD
> is set to 0 on call termination. 
>
> Any pointers for the above questions would be highly appreciated. 
>
> Regards,
> Harneet
>
> -- 
> "Once you eliminate the impossible, whatever remains, no matter how
> improbable, must be the truth" - Sir Arthur Conan Doyle
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda

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