At Zoom, we are hard at work to provide you with the best 24x7 global support experience during this pandemic. As part of this ongoing commitment, please review our updated Support Guidelines.

Using dual screen views for SIP/H.323 devices Follow


SIP/H.323 devices connected via the Cloud Room Connector can now view the Active Speaker layout on one screen while viewing the Gallery view layout on a second screen. If there are only two other participants in the meeting, both participants will be displayed separately on each screen. 

Note: This feature utilizes the dual-streams, by using the content stream for the second video feed when screen sharing is not being utilized. Due to this, if your dialing string utilizes "505" to force single-stream video connections, this feature will not work correctly. 


  • SIP/H.323 device connected to two monitors
  • H.239 or BFCP enabled at the device level
  • H.264 is supported for screen share content channel
  • Call speed of 4 Mbps or higher

Joining with dual-screen video enabled

To join a meeting with dual video-enabled, you will need to add "308" to your dial string, when dialing into the meeting.