Re: receiving INFO request

Gerard van den Bosch <gvandenbosch@xxxxxxxxx> · Fri, 1 Jul 2016 16:49:28 +0800

Hi Bernard,
The INFO message is inside the dialog and I can see it in the PJSIP debug.
But it does not get into my tsx state changed function.

I have defined the module as following:
static pjsip_module mod_simpleua =
{
    NULL, NULL, /* prev, next. */
    { "mod-simpleua", 12 }, /* Name. */
    -1, /* Id */
    PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */
    NULL, /* load() */
    NULL, /* start() */
    NULL, /* stop() */
    NULL, /* unload() */
    &on_rx_request, /* on_rx_request() */
    NULL, /* on_rx_response() */
    NULL, /* on_tx_request. */
    NULL, /* on_tx_response() */
    &on_tsx_state, /* on_tsx_state() */

};

Register the module as following:
 status = pjsip_endpt_register_module( sip_endpt, &mod_simpleua);

And in the handler I try to do a printf:
static void on_tsx_state(pjsip_transaction *tsx, pjsip_event *event)
{
    const pjsip_method info_method =
    {
        PJSIP_OTHER_METHOD,
        { "INFO", 4 }
    };

    printf("-------------------Handle tsx state change!-------------------\n");
}

But the debug message is never printed at all.

And then I see in the PJSIP debug that it is unhandled.

Cheers,
Gerard

On Fri, Jul 1, 2016 at 3:55 PM, POQUILLON, Bernard <bpoquillon@xxxxxxxxxxxx> wrote:

Hi Gerard,

You can receive INFO message inside an established call or outside. Inside a call, you will be notified through the callback function inv_cb.on_tsx_state_changed.
 If you receive an INFO outside a dialog, then the on_rx_request function is called.

Hope it helps.
Bernard

De : pjsip [mailto:pjsip-bounces@xxxxxxxxxxxxxxx]
De la part de Gerard van den Bosch

Envoyé : vendredi 1 juillet 2016 05:39

À : pjsip@xxxxxxxxxxxxxxx

Objet :  receiving INFO request

Hello,

I am trying to extend the Simple UA example to accept INFO requests.

http://www.pjsip.org/pjsip/docs/html/page_pjsip_sample_simple_ua_c.htm

I have added on_tsx_state function to mod_simpleua with following prototype:

static void call_on_state_changed( pjsip_inv_session *inv,pjsip_event *e);

Then I added accept INFO capabilities to the end point.

const pj_str_t   STR_INFO = { "INFO",4 };

pjsip_endpt_add_capability(sip_endpt, NULL, PJSIP_H_ALLOW,NULL, 1, &STR_INFO);

But when the INFO messages comes in, in the debug I see the following:

11:12:17.823    tsx0x7389c8  ..Request msg INFO/cseq=7 (rdata0x6ca648) was unhandled by dialog usages, sending 500 response

11:12:17.823      siptest.c  ....TX 330 bytes Response msg 500/INFO/cseq=7 (tdta0x730ba0) to UDP
192.168.100.136:5060:

SIP/2.0 500 Unhandled by dialog usages

Am I missing something to receive the INFO messages properly?

Cheers,

Gerard

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