there is similar post before, here http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2007-October/000331.html try to use pjsua_set_null_snd_dev. more http://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__MEDIA.htm#g2e6cb631c6ca40d30973cc5ebeaba255 ...atik On Tue, Aug 5, 2008 at 9:30 PM, Liusheng <liu_sx2006 at hotmail.com> wrote: > Thanks atik, I changed the port, still have problem, seems that the PJSUA > need bind sound card, but one pc sound card can only bind by one sip UA? the > error as follow:
