WJ Audio/Video Visualized Duty Management System
- Concept Introduction:
Both the general headquarters and the detachment are central endpoints;
One-way broadcast call means other users can only receive the local endpoint's audio/video, and the local endpoint does not accept any user video streams;
Conference call means the local endpoint receives all user videos and displays them in equal division mode, N+1 mode, and VIP mode, serving as video conference display mode switching or video surveillance display mode, and pushes the displayed composite video to all other clients; all users in the conference can speak.
PTT audio/video intercom: a member presses the PTT key to send the local endpoint's audio/video to other clients, and releases the PTT key to end transmission. Other clients only display the audio/video of the currently speaking user; when there is no video, the window does not display video, or displays default video information.
Central endpoint pushed video stream selection: multiple USB camera switching, video file playback window, multi-user video composite display window, screen capture, etc.

- Platform Configuration Functions:
Organization structure configuration and deployment: member import
Common group member configuration: conference group, PTT group, multicast broadcast group
Functions:
Device status monitoring: central endpoint interface introduction (dispatch resource tree, user area, function area, property area), icon status introduction; user endpoint interface introduction. Recording window for all user call actions, system log window;
Detachment duty personnel monitoring: view video images without requiring detachment personnel operation or knowledge;
Central endpoint calling:
(1) One-key call to remote idle client: the remote party answers when seeing the incoming call ring
(2) One-key call to a remote client currently in a call: the superior uses the forced release function to directly tear down the remote call and establish a new call;
(3) One-key call to a predefined group for broadcast call or full-duplex conference call;
(4) Quick selection of a complete group for calling: e.g., the general headquarters selects all personnel of one or more detachments for one-way broadcast call or conference call;
(5) Selecting multiple scattered users for calling:
(6) The superior invites new members to join an ongoing conference
(7) Notification playback: play video file media stream to designated user members for X minutes
Remote one-key call to direct superior;
Remote auto-answer setting: can be configured to auto-answer after 0.5S-1S of ringing; otherwise, manual answering is required
PTT group audio/video intercom: members in a designated group can press PTT to speak using audio/video. PTT mode has the lowest priority and can be interrupted by calls.
Recording: record the audio/video of current communications, and upload to the server after recording ends. The central endpoint should be able to set automatic recording of audio/video from remote incoming calls.
Image labels: can configure image labels displayed on images
Duty information query: connected to the duty system, can display current duty personnel information (such as name, duty period, face matching information)
Multi-dimensional broadcast: demonstration of switching function of multiple USB video intercom terminals at the central endpoint: to meet the speaking needs of multiple leaders (optional)
