Far-end camera control from Board, Desk, and Room Series
If the far-end device has activated Speaker mode where the camera follows the active speaker or is using Best View , you can't control the camera remotely.
You don’t have remote access to any camera presets.
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            For Webex Edge for Devices linked devices, far-end camera control is available in Webex meetings when Webex Optimized Experience is enabled. 
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            You can't control the camera on a DX80. 
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            You can't control the camera of a device registered in personal mode. 
| 1 | During a call, open the Participants list. | 
| 2 | Select the one whose camera you want to control and tap Control camera . | 
| 3 | Adjust the remote camera's tilt, pan, and zoom with the camera control buttons. Tap anywhere outside the buttons when you’re done. |