I am designing a videoconferencing H.323 corporate network infraestructure and I have some questions related with multiconferencing and WAN bandwidth planning.
I am planning a MCU in a central site and 3 H.323 terminals on a remote site that need to join to a MCU service on voice activated switching for e-learning.
I understand that on Voice activated switching mode, the stream that the MCU sends to all the participants is the same. In order to preserve bandwith on the WAN link, this MCU service working as IP multicast would be the right solution.
a) I can’t find any document where indicates if MCU services or Cisco MCM could work on IP Multicast mode with any videoconferencing application for multiconferencing. I found vague indications on a white paper (http://www.cisco.com/warp/public/cc/pd/iosw/ioft/mmcm/tech/h323_wp.htm) but not in technical detail.
b) I have also information about VCON interactive multicast technology for VCON Meeting Point software. Does it work with Cisco MCM, MCUs arquitecture?
c) Also, in voice-activated mode, are all the participants sending all the time their respective streams to the MCU or only the selected terminal of who is speaking at this moment?
