10-14-2012 11:24 PM - edited 03-17-2019 11:58 PM
Hi, guys.
I'm interested in video conferencing and content sharing at the same time. How is the whole thing made? From what I've found in the internet I saw that the protocol that is used is H.239 over H.323, but basically that's all I found.
Are there several types of sharing content? Are the voice and video sharing the same stream with the content? Is the content available only on another screen or it can be mixed with the video in the same screen? Is there a place where can see a sample call flow of the whole operation?
Thanks,
Kiril
10-15-2012 12:08 AM
There is several method for content share.
SIP: BFCP (open two video channels, one for main video and other for content video channel).
H.323: H.239 (open two video channels, one for main video and other for content video channel).
Also TIP for sending multiple video stream in same video channel.
BFCP/H.239 is common method for sending content channel.
It open two video channels and sending video stream separately but usually audio will mix (mix audio from microphone and other input like DVD audio a part of content sharing).
Basic call flow (in most common method) for H.239 is…,
Addition to above content sharing method, Cisco TelePresence MCU support content sharing on main video channel (MCU mix content video channel into one of video panel in main video stream) for Endpoint doesn’t support 2nd video capability.
01-10-2014 10:03 AM
Excellent summary Tomo.
Thanks,
Amir
11-11-2020 11:21 PM
Hi Tomonori,
Thanks for bringing this information up.
how about content sharing between 2 conference calls as example Cisco MCU and Zoom Meeting?.
Let's say, there's a conference call in Cisco MCU, and on the other hand, there's also a conference call in zoom meeting with another participants.
Calls are made between Cisco MCU and Zoom Meeting (CRC), How does Cisco user side view a meeting layout/display when a user from the Zoom side make presentations and vice versa? (how does Zoom user side view meeting layout when a user from Cisco side make presentations).
Thanks
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