Hi Everyone, I have an audio device that transmits an RTP stream to my PC running PJSIP. I would like to convert that incoming RTP stream into a conference port so I can mix it with active calls using the conference bridge. I have been looking through documentation and searching the mailing list for a solution and I came across http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2008-April/002738 .html. I have since tried to follow the steps provided by Nanang but unfortunately I can't get past the first step, i.e. creating a media transport. I have searched through the documentation for how to do this and so far as I could tell I should do it like so pj_status_t status = pjmedia_transport_udp_create( pjsua_get_pjmedia_endpt(), "Custom Call", port, 0, &mediaTransport ); This however doesn't work, and I get the error 70010, too many objects. Stepping through the code I realised the media end point from pjsua_get_pjmedia_endpt(), already has the maximum number of transports created for the 32 max calls I have configured PJSIP for. I have been trying to find out how to increase this, or possibly raise my max calls and hijack the last two transports to support my custom streams, but I have yet to find a solution. Any advice would be greatly appreciated, and I thank you for taking the time to help. Regards, Pierre