TE终端如何控制本地或远端摄像机：
当终端不在会议中时，您只能选择本地摄像机。当终端在会议中时，您可以选择本地摄 像机或远端摄像机。
请先选择“高级 > 设置 > 视频 > 公共设置 > 视频输入”，设置参数“视频源选择”为 “启用”。
再按以下方法选择摄像机：
按遥控器的摄像机按键，在屏幕的右下角选择本地或远端的某个摄像机。
说明:屏幕的左上角会有文字显示远端摄像机控制或本地摄像机控制，按遥控器的键，切换本远端 摄像机控制。
How does a TE endpoint control local or remote cameras?
If the endpoint is not in a conference, you can select only the local camera. When the endpoint is in a conference, you can select a local camera or a remote camera.
Choose Advanced > Settings > Video > Common Settings > Video Input and set Video Source Selection to Enable.
Select a camera as follows:
Press the camera button on the remote control, and then select a local or remote camera in the lower right corner of the screen.
Note: A text is displayed in the upper left corner of the screen, indicating whether to control the local or remote camera. Press on the remote control to switch between the local and remote cameras.