Optical Anti-Blue Light is a hardware-based solution that shifts the peak wavelength of harmful blue light (415nm-455nm) to a safer range at the source (LED backlight).
* No color cast (A): Unlike software filters that apply a yellow/orange tint to the screen, optical filtering maintains accurate, natural color reproduction.
* Lower harmful light (B): It physically reduces up to 60% of high-energy short-wave blue light while preserving color depth.
* Always-on (C): Because it is built into the backlight, it is active 100% of the time without requiring the user to navigate menus or enable "Night Mode" manually.

Huawei provides an open Software Development Kit (SDK) for the IdeaHub S2 to encourage ecosystem growth. While many standard Android apps are limited to 1080p, Huawei allows third-party meeting service providers (like Zoom, Teams, or local providers) to integrate with the IdeaHub's dedicated hardware encoding/decoding chip . Once this deep adaptation is completed, the third-party app can bypass standard software processing and achieve native 4K resolution for both video and shared content.

The Huawei Service Management Center (SMC) is highly flexible and offers multiple ways to initiate or schedule conferences:
* Third-party interfaces (A): Uses RESTful APIs to allow external applications (like an enterprise's own office portal) to create conferences.
* SiteCall (B): A unique Huawei feature where a user can initiate a multi-point conference directly from an endpoint (terminal) by selecting multiple contacts or a group, without needing to log into the SMC web interface.
* SMC (C): The native web-based management interface used by administrators and users to schedule and manage conferences.
* Outlook (D): Through a dedicated plug-in, users can schedule a video conference directly from their Outlook calendar, just like a regular meeting.

The Huawei CloudLink Bar 310 is an industry-standard terminal designed for maximum interoperability. It supports the two primary signaling protocols: H.323 (B) and SIP (D) .
To facilitate content sharing (dual-stream) during a call, it supports the corresponding data protocols for each signaling type:
* H.239 (A): The standard for dual-streaming within H.323 calls.
* BFCP (C): The Binary Floor Control Protocol used for dual-streaming within SIP calls.
This ensures the Bar 310 can share presentations and video simultaneously regardless of the infrastructure it is connected to.

The SMC serves as the "brain" of the Huawei Intelligent Collaboration solution.
* Option A is correct: It supports various networking scales, from single-node lightweight deployments to multi-level, large-capacity hierarchical networking for global enterprises.
* Option B is correct: It provides comprehensive control features, including extending conferences, inviting participants, switching continuous presence, and managing chair rights.
* Option C is correct: Huawei provides RESTful APIs for the SMC, allowing third-party developers to integrate video conferencing functions into their own office automation (OA) systems or apps.
* Option D is incorrect: While the SMC manages and initiates recording tasks, the actual technical capability to record and stream 1080p@60 fps dual-stream video is a feature of the CloudRSE (Recording & Streaming Engine), not the SMC itself.