Raghudeep Currently there is no intention to support ZRTP in H323plus. The industry adopted standard H.235.6 I hope to introduce in the coming months. SRTP (H.235.8) may come later. Simon From: h323plus-bounces@lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com] On Behalf Of Opal Developer Sent: 02 March 2011 06:20 To: h323plus@lists.packetizer.com; opalvoip-devel@lists.sourceforge.net Subject: [h323plus] ZRTP/SRTP enabling in OPAL/H323PLUS Hi All. Has anyone succedded in enabling SRTP/ZRTP in OPAL/H323plus? It seems to be disabled in OPAL currently. Can you please share thoughts? I am using the Sirius release on Windows OS and Visial Studio. Any help is greatly appreciated. Thanks and regards, Raghudeep