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Communication



WHAT IS RAINBOW?

The Rainbow app is a cloud-based UC service (UCaaS) that makes additional collaboration services available to users, regardless of their existing communications systems.

As an overlay solution, Rainbow brings rich feature capabilities, like contact management, presence, chat, audio/video call, screen and file sharing. And it's simple to deploy: users can download and install it in a single click at www.openrainbow.com



Rainbow Conferences Overview


Rainbow Bublle
Rainbow Meeting
Rainbow offers two kinds of conference:

First one, called Video Collaboration, is collaboration oriented (IM, sharing, audio, video) with a reduced capacity of participants (up to 10).

The second one, called Audio Conference, supports a large capacity of participants (up to 100).


These conference solutions are mainly distinguished on two points:

1. The organization of the conference:

  • The Video Collaboration is an instant (ad-hoc) conference established from a bubble.
  • The Audio Conference is scheduled from meeting tab for an ulterior or an immediate use through an email invitation.

  • 2. he way to access it:

  • For Video Collaboration, users access it through a Rainbow bubble using HTTPS/Web RTC.
  • For Audio Conference, users access it through PSTN and optionally enrich capabilities with a web interface through HTTPS.
  • OVERVIEW :

    Video Collaboration




    Wave



    Wave


    Video Collaboration Overview

    Ad-Hoc video conferences managed directly by Rainbow servers thanks to SFU routing services (Bridge).

    Ad-hoc conferences are established through a bubble.

    Multi-media capabilities (IM, Audio, Video and screen sharing).
  • IM is seen as a data flow
  • Screen sharing is seen as a video flow
  • Audio is mixed at the server level

  • Up to 10 simultaneous participants in one video conference but video visualization is limited to 4 simultaneous participants.
  • Some participants can be in audio only.



  • Video Collaboration Selective Forwarding Unit (SFU)

    1. SFU doesn’t process the video media but rather routes it to everyone who needs it

    2. Each client sends its video media to the SFU, which then forwards that media to all other participants who decided to display it.

    3. Client sends one video flows and receive several flows (up to 4 with Rainbow).

    4. Client can instruct SFU which streams to send.

    5. High throughput on server side (SFU).

    6. Low latency.

    Video Collaboration Multi-party topologies in WebRTC

    Comparison of different media flows with a 5 participants conference (and a capability of 4 displays)


    Audio Conference


    banner_govtvideo_in-en.jpg

    Audio conference Overview

    Audio conference is accessible thanks to a scheduled invitation only.

  • Provides conference access code and phone numbers
  • Scheduled conferences are created through Rainbow
  • Scheduled conferences are displayed in a dedicated folder call “Meetings” in the Rainbow client.
  • Accessible to non company’s users (external guests)

  • Audio mixing is done through a MCU (Multipoint Control Unit) provided by a third-party solution (Partner is Pgi)

  • Supports audio media only but possibility to adjoin IM and Screen Sharing through the SFU (December 2017)
  • Up to 100 simultaneous participants in one conference
  • Audio conference Meeting controls

    From the user interface each participant can:

  • See the list of participants
  • See the active speaker
  • See when an attendee joins the meeting, when an attendee leaves the meeting
  • Mute/Unmute its line
  • Leave the meeting

  • Added to the previous capabilities, organizer (or owner) of the meeting can:

  • Mute/Unmute the line of a participant
  • Mute all/Unmute all participants
  • Add a new participant (Rainbow user or Guest user)
  • Audio conference Bridge access

    Through the PSTN network

    Possibility to choice between Dial-in or Dial-out

    Optionally dial-out can be forbidden by the company administrator (available in Q1 2018)
  • Calls generated through a dial-out is charged to the company who has created the conference.

  • Dial-out accessible through a web interface for Rainbow users and guests

    Country local access
  • In order to reduce access cost to the conference bridge, there are 160 local phone numbers across more than 60 countries

  • Multi-language voice prompt greeting for Dial-in accesses (See next slide)



    Data Center
    system hardware
    network
    virtualization
    multimedia
    Communication

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