Exact Extract — Huawei Training Material, PDF page 56

H.323+SIP dual protocol stack implements 1080p audio and video and 4K data sharing. Supports H.264 + H.265 dual protocols and 4K hardware encoding and decoding. Voice tracking and intelligent tracking. Auto-Framing automatically identifies the best angle for multiple participants. Acoustic baffle automatically shields the external noise and adapts to various meeting rooms.

Technical Deep Dive

Huawei IdeaHub S2 supports dual-stream conferencing, allowing the remote participant video and shared presentation content to be transmitted at the same time. The main stream conveys the conferencing participant's audiovisual video, while the content stream carries documents, presentations, diagrams, or other shared visual information. The V2.0 on-premises conferencing profile identifies 1080p30 main video together with a 1080p30 content stream, with an alternative licensed content-sharing profile of 4K8fps.

The 1080p30 notation means 1920 × 1080 resolution at 30 frames per second. Dual-stream support improves collaboration because participants can follow the speaker while simultaneously seeing the discussed material. The negotiated profile can depend on license entitlement, peer capabilities, server resources, network conditions, and software versions. It should not be confused with the S2's 4K display or 4K hardware codec capabilities. Among the listed combinations, 1080p30 for both main and content stream matches the described dual-stream mode, so answer C is correct.

During customer solution design, engineers must distinguish native collaboration functions from optional OPS modules, external peripherals and software or conferencing licenses. Display size, room acoustics, source-device capabilities, network conditions and firmware release can all affect practical performance. A model-family feature should not automatically be attributed to every other IdeaHub generation.