[pjsip] How to get notification for every received SIP message?

Gary Metalle Gary.Metalle at ipfx.com
Tue Jun 26 18:15:12 EDT 2012


Hi.

You can set-up a 'receive message sniffer' like this:


1.       Create a pjsip_module struct

pjsip_module CSoftphone::mod_app_message_sniffer =
{
    NULL, NULL,                             /* prev, next.        */
    { "mod-app-message-sniffer", 23 },    /* Name.          */
    -1,                                         /* Id             */
    PJSIP_MOD_PRIORITY_TSX_LAYER-1, /* Priority         */
    NULL,                     /* load()         */
    NULL,                     /* start()        */
    NULL,                     /* stop()         */
    NULL,                     /* unload()       */
    NULL,                 /* on_rx_request()    */
    &CSoftphone::ModAppMessageSnifferOnRxResponse,  /* on_rx_response() */
    &CSoftphone::ModAppMessageSnifferOnTxRequest,     /* on_tx_request()      */
    NULL,                     /* on_tx_response()     */
    NULL,                     /* on_tsx_state() */
};

2.  Register this module with the library:


    /* Initialize our module to sniff messages */
    pjsip_endpt_register_module(pjsua_get_pjsip_endpt(), &mod_app_message_sniffer);


3.  Implement the static function to sniff the rx message:

pj_bool_t CSoftphone::mod_app_message_sniffer_on_rx_response(pjsip_rx_data *rdata)
{
    if (rdata->msg_info.msg->type == PJSIP_RESPONSE_MSG)
    {
      // bla bla this was a response message
    }

    return PJ_FALSE;
}

You'll note that in my module I created a sniffer for TX messages as well in a similar way.

Note also that you need to return PJ_FALSE in your handler if you are only sniffing the incoming (rx) messages and not actually handling them.

Regards.

Gary.


From: pjsip-bounces at lists.pjsip.org [mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of Tom Merriewether
Sent: Wednesday, 27 June 2012 9:28 a.m.
To: pjsip list
Subject: Re: [pjsip] How to get notification for every received SIP message?

What I really want is any SIP message like NOTFY,INVITE,  etc.  and not just when an incoming call occurs.
On Mon, Jun 25, 2012 at 3:49 AM, Pawel Kuzak <pawel.kuzak at 1und1.de<mailto:pawel.kuzak at 1und1.de>> wrote:
Hi Thomas,

did you try the "on_incoming_call" callback from the pjsua_callbacks? Take a look here:
http://www.pjsip.org/pjsip/docs/html/structpjsua__callback.htm

Kind regards,
Paul

Am 22.06.2012 22:28, schrieb Tom Merriewether:

I am using the pjsua package and need to register to get a callback every time the stack receives an incoming message.
How do I do this?  I need to count the number and frequency of incoming messages when my iPhone app is in the background.
Any pointers on how to do this would be greatly appreciated.

TIA

--
Thomas Merriewether
Star2Star Communications


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--
Thomas Merriewether
Star2Star Communications



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