Josh

The multiplexing support requires H.460.19. GnuGk v3.0 supports H.460.19 Multiplexing. The multiplexing can be end to end using GnuGk and only uses 2 ports regardless of how many Calls and RTP sessions are running. The default ports for h323plus are 2666 and 2667 and for GnuGk are 3000 and 3001. The first port is multiplexed RTP and the second is multiplexed RTCP. RTCP is mandatory for H.323 however there is little effect if it's blocked.

Simon

From: h323plus-bounces@lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com] On Behalf Of J.C Mercier Sent: 14 December 2011 14:33 To: h323plus@lists.packetizer.com Subject: [h323plus] Multiplexing support in H323plus

Hi all,

looking through the h323plus code, I noticed it supports multiplexing for H.460.19. Just a few questions;

1. Does H323plus also support RTP multiplexing without the need for h.460.19 (direct endpoint to endpoint)? 2. If it doesn't support endpoint to endpoint multiplexing, does limiting RTP ports to only a few ports such as 10 to 12 (i.e. 3000 - 3010) opened port always remain in that range or will this produce any side affects when making a lot of calls? 3. With multiplexing support for H.460.19, is it 2 ports; 1 bi-directional port for audio and 1 bi-directional port for video? is there a third port for RTCP (QoS)? 4. Is sending/receiving RTCP/QoS mandatory for H.323 systems? What affects are there if this is not enabled?

Thanks for all your help

Josh