What is the maximum number of people who can communicate in two directions when a web conferencing is held?

The upper limit differs between audio and video.
-Voice transmission of viewers: Any number of people is possible. However, only one person can be allowed. The status remains the viewer.
-Audience video transmission: You need to be promoted to a panelist. Up to 99 people can be promoted to panelists. (Up to 100 people including the host)

Please tell me the standard of communication volume of PC / smartphone / tablet in Zoom

PC traffic

  • For 1: 1 video calls
    • For HQ video: 600kbps / 600kbps (up / down)
    • For 720p HD video: 1.2Mbps / 1.2Mbps (up / down)
    • For 1080p full HD video: 1.8Mbps / 1.8Mbps (downlink / uplink)
  • For group video calls
    • For HQ video: 800kbps / 1.0Mbps (up / down)
    • For gallery view: 1.5Mbps / 1.5Mbps (up / down)
    • For 720p HD video: 1.5Mbps / 1.5Mbps (up / down)
    • For 1080p full HD video: 2.5Mbps / 3.0Mbps (downlink / uplink)
  • Screen sharing only (no video thumbnails): 50-75kbps
  • For screen sharing using video thumbnails: 50-150kbps
  • For Audio VoIP: 60-80kbps
  • For Zoom Phone: 60-100kbps

On the smartphone/tablet traffic
Zoom help page, “The bandwidth used by Zoom is optimized for the best experience based on the participant’s network. It is automatically adjusted for 3G or WiFi. However, if you want to calculate the reference value, please use the following value.

  • For 1: 1 video calls
    • For HQ video: 600kbps / 600kbps (up / down)
    • For 720p HD video: 1.2Mbps / 1.2Mbps (up / down)
  • For group video calls
    • For HQ video: 800kbps / 1.0Mbps (up / down)
    • For gallery view: 1.5Mbps / 1.5Mbps (up / down)

As an example, the communication charge per hour can be obtained by the following formula.
● Reference value to be used For
speaker view of group video call (3 or more people and HQ image quality):
600kbps / 1.2Mbps (uplink / downlink)
● Calculation
unit conversion: 600kbps (uplink) + 1.2Mbps (downlink) ÷ 8bit = 0.225 MB / s
Communication volume per hour: 0.225 MB / s x 3600s = 810 MB / h The

communication volume is a guideline value and the
actual value may vary depending on the network environment.
Please forgive in advance that it does not apply to all environments.