Video calls better quality when 3rd person joins RRS feed

  • Question

  • Hello,

    We've noticed video calls are better quality when we invite a 3rd person into the call, what changes when this happens, do we enter a conference mode when a 3rd person joins?

    Friday, November 25, 2016 7:34 PM

All replies

  • Hi TB303,

    If you invite a 3rd person, the peer-tp-peer call will be enhanced to a conference call and use the MCU of your FE server.

    Maybe it is a problem of bandwidth between peer-to-peer calls?

    regards Holger Technical Specialist UC

    • Proposed as answer by Alice-Wang Monday, November 28, 2016 7:00 AM
    Saturday, November 26, 2016 2:02 PM
  • Hi TB303,

    Welcome to post in our forum.

    Regarding your issue, I agree with Holger.

    In conference scenario, each participant that turns on the user’s send video stream will send one or more video streams. SFB add the capability of sending up to five video streams to optimize the video quality for all the receiving clients. The actual number of video streams being sent is determined by the sender based on CPU capability, available uplink bandwidth, and the number of receiving clients requesting a certain video stream. The most common case is that one H.264 and one RTVideo video stream are being sent in case a legacy client joins the conference. Another common scenario is that several H.264 video streams.

    For details, please refer tohttp://masteringlync.com/2012/12/28/understanding-video-bandwidth-in-lync-2013/ (It’s same to SFB 2015)

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    Alice Wang

    Please remember to mark the replies as answers if they help.
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    • Proposed as answer by Liinus Tuesday, November 29, 2016 9:14 AM
    Monday, November 28, 2016 7:23 AM
  • Thanks.

    On my one to one video call with my boss, I was working from home and my boss was on the LAN at work.

    So I guess my home internet was causing the issue for both?

    Monday, November 28, 2016 10:19 AM
  • Yes Home Network could be an issue, if possible try to have a lan connected wherever possible than wireless and also you can check the call quality from the monitoring reports if you have deployed them

    Linus || Please mark posts as answers/helpful if it answers your question.

    • Proposed as answer by Alice-Wang Wednesday, November 30, 2016 8:57 AM
    Tuesday, November 29, 2016 9:15 AM