Hi, Not really sure what the problem is. The rtp_cb and rtcp_cb are callback functions (provided by application, not the media transport) registered to the media transport via pjmedia_transport_attach(), so the media transport can notify the application when packets are received. See the pjmedia_transport_attach() doc. BR, nanang On Fri, Aug 27, 2010 at 3:06 PM, digist pjlib <hassensupcom at hotmail.fr> wrote: > > > > hi > > > i need to know how the transport send or recieve an RTP packet ?? can you > help me > > in this link you can find the schema of this communication but i can't find > the rtp_cb function > > please i need help.i need to have an extra parameters with the rtp packet . > i use two transport at the same time and i need to know if the rtp is > comming from the transport 1 or 2 > > thank you , > > > > > http://www.pjsip.org/pjmedia/docs/html/group__PJMEDIA__TRANSPORT.htm > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > >