With conference bridge, you can use API to get RX & TX signal level from specific port. So checking RX level of the sound device port periodically may cover your need. nanang On 17/03/2008, Rameshwar Thakurathi <rameshwar at gmail.com> wrote: > hi! > > Is it possible to detect whether the anoter party is transmitting voice or > not ? > I want to switch on my speakers only if some body is speaking otherwise > speakers have to be turned off. > > How can this be implemented ? > > -- > cheers, > rameshwar > _______________________________________________ > 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 > >