Re: [SR-Users] Add Reason Header to kamailio generated CANCEL

Hello,

how do you expect to fill the value of the header?

Typically it is build based on the response of the INVITE, probably the reason it was implemented inside the tm module. I need some example of possible cases you want to be covered to see what's possible now or what can be added to enable them.

Cheers, Daniel

On 17.11.20 15:17, Denys Pozniak wrote:

Hello!

We need to append our own Reason header for the "relayed" CANCEL message, if it is not on the input. Like below:

/if ( is_method("CANCEL") && !is_present_hf("Reason") ) { / /  append_hf("Reason: ....);/ /  t_relay();/ /.../ / /

вт, 17 нояб. 2020 г. в 13:00, Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com>:

Hello,

what is exactly the problem? The header is not added if you enable:

  *
http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_reason
<http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_reason>

Cheers,
Daniel

On 16.11.20 20:43, Denys Pozniak wrote:

...

Hello guys,

We have faced almost the same problem adding *Reason:
SIP;cause=200;text="Call completed elsewhere"* to the t_relayed
CANCEL request.
Is there an elegant solution to add this header?

PS. Switching to the stateless mode does not look pretty for us...
 

сб, 1 февр. 2020 г. в 06:04, Alfonso Pinto
<alfonso.pinto@gmail.com <mailto:alfonso.pinto@gmail.com>>:

    Hi guys,

    Thanks for your answers.
    I did try local_cancel_reason and it’s not doing anything for
    the CANCELs generated by kamailio. Isn’t that parameter
    intended for the CANCELs received and then relayed?

    As Alex and David mentioned, what I need is to add my own
    reason header. There are some cases that requires to set the
    Reason header to something specific. IE: terminal supported
    call waiting in IMS.

    Thanks for the piece of code, I will check what can be done here.

    Regards,
    Alfonso

    El El vie, 31 ene 2020 a las 22:10, Henning Westerholt
    <hw@skalatan.de <mailto:hw@skalatan.de>> escribió:

        Hi Alex,

        ok, I was reading that he wants to get just one reason
        header, not one dynamic generated.

        Just looked briefly, this seems to be the code:

        t_msgbuilder.c
        /* Build a local request based on a previous request; main
         * customers of this function are local ACK and local CANCEL
         */
        char *build_local(struct cell *Trans,unsigned int branch,
                unsigned int *len, char *method, int method_len,
        str *to
                , struct cancel_reason* reason
                )

        Cheers,

        Henning

        -- 
        Henning Westerholt – https://skalatan.de/blog/
        <https://skalatan.de/blog/>
        Kamailio services – https://gilawa.com <https://gilawa.com>

        -----Original Message-----
        From: sr-users <sr-users-bounces@lists.kamailio.org
        <mailto:sr-users-bounces@lists.kamailio.org>> On Behalf
        Of Alex Balashov
        Sent: Friday, January 31, 2020 9:45 PM
        To: sr-users@lists.kamailio.org
        <mailto:sr-users@lists.kamailio.org>
        Subject: Re: [SR-Users] Add Reason Header to kamailio
        generated CANCEL

        I understood Alfonso's question to implicitly be: how can
        I add a dynamic and variable Reason header to outgoing
        CANCELs?

        Perhaps I was mistaken. But if I'm not, as far as I know
        there is no means of doing that. Right?

        On Fri, Jan 31, 2020 at 08:37:48PM +0000, Henning
        Westerholt wrote:

        > Hello,
        >
        > have you tried to use this parameter:
        >
        >
        http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_r
        <http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_r>
        > eason
        >
        > Cheers,
        >
        > Henning
        >
        > --
        > Henning Westerholt – https://skalatan.de/blog/
        <https://skalatan.de/blog/> Kamailio services –
        > https://gilawa.com
        <https://gilawa.com><https://gilawa.com/
        <https://gilawa.com/>>
        >
        > From: sr-users <sr-users-bounces@lists.kamailio.org
        <mailto:sr-users-bounces@lists.kamailio.org>> On Behalf Of
        > Alfonso Pinto
        > Sent: Wednesday, January 29, 2020 8:04 PM
        > To: Kamailio (SER) - Users Mailing List
        <sr-users@lists.kamailio.org
        <mailto:sr-users@lists.kamailio.org>>
        > Subject: [SR-Users] Add Reason Header to kamailio
        generated CANCEL
        >
        > Hi everyone,
        >
        > I've got a specific case: when the inv_fr times out, I
        need to add a Reason header to the CANCEL generated by
        kamailio. I've tried to see if I could do it in the
        onsend_route, but that one is not triggered for the
        generated CANCEL. I also checked
        event_route[tm:local-request], but that one isn't
        triggered either for the generated CANCEL.
        >
        > Is there any way to do it? Or maybe to have any pointer
        about where to look in the code so I may try to trigger
        event_route[tm:local-request] for these generated CANCELs?
        >
        > Regards,
        > Alfonso

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BR,
Denys Pozniak



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BR, Denys Pozniak