pjsua_conf_adjust_rx_level() won't work when you are using APS-Direct + hardware codec, please see http://trac.pjsip.org/repos/wiki/Nokia_APS_VAS_Direct With the new audio device framework (APS-Direct works on it), you can use pjsua_snd_set_setting(), there is already example for setting volume in pjsip-apps\src\symbian_ua\ua.cpp, here is the snippet code: === unsigned vol; pj_status_t status; status = pjsua_snd_get_setting( PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING, &vol); if (status == PJ_SUCCESS) { if (kc == EKeyUpArrow) vol = PJ_MIN(100, vol+10); else vol = (vol>=10 ? vol-10 : 0); status = pjsua_snd_set_setting( PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING, &vol, PJ_TRUE); } if (status == PJ_SUCCESS) { PJ_LOG(3,(THIS_FILE, "Output volume set to %d", vol)); } else { pjsua_perror(THIS_FILE, "Error setting volume", status); } === Regards, nanang 2009/4/2 mohamed hassan <e-mohhassan at hotmail.com>: > Hi all, > > I need to increase volume, I try increase by: > > pjsua_conf_adjust_rx_level(1, app_config.mic_level); > > pjsua_conf_adjust_tx_level(1, app_config.speaker_level); > > But still volume low (not acceptable) , I need to increase over that. What's > work? > > Thanks. > ________________________________ > See all the ways you can stay connected to friends and family > _______________________________________________ > 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 > >