Hi I need to detect silence with pjsua_conf_get_signal_level() using the conference port of a call, but if the conference port is not already connected to sound devices the read values are zero. I need to detect the silence for a given call in parallel, while another call has been answered, this is why I cannot connect the audio devices to 2 different calls. Is there a solution for this problem ? thanks Bogdan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20151230/b573e0c6/attachment.html>