Hi, Call back method *on_call_media_state *is the place you can manage full / half duplex audio, pjsua_conf_connect (ci.conf_slot, 0); pjsua_conf_connect (0, ci.conf_slot); First a half duplex is established by connecting remote port with your port and again a half duplex is established by connecting your port with remote port, in turn creates a full duplex audio. Hope this helps... Thanks, Srivatsan D hlabishi kobo wrote: > hi > can someone help me, how can i change symbian pjsip from full-duplex > to half-duplex > ------------------------------------------------------------------------ > > _______________________________________________ > 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 > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091016/cf36dec9/attachment.html>