H11-861_V4.0 HCIP-Collaboration V4.0 Question and Answers

When troubleshooting conferences, engineers must know the video protocol in use, the conference type, the resolution and frame rate being delivered, and the bandwidth allocation - each of these parameters directly impacts session behavior and helps pinpoint faults.

With signaling routing enabled on the SC, both the H.225 call signaling and the H.245 control channel are each split into two TCP legs (T1→SC and SC→T2), resulting in 2 × 2 = 4 TCP connections.

Dual-channel PCM at 8 kHz with 8 bits per sample yields 8,000 × 8 = 64 kbit/s per channel; two channels give 64 × 2 = 128 kbit/s.

In the conference site list, Site 18 corresponds to T3 and its remote media IP ([RmtMedIp]) is listed as 172.23.132.76.

The mswt-media allflow command reports the bit rates of all ongoing media streams on the CloudMCU; it does not display conference/participant counts, system info, or logs.

In an SVC intelligent forwarding conference, delivering 1080p (1920×1080) at 30 fps requires approximately 6 Mbit/s of bandwidth to carry the base and enhancement layers needed for full-HD reconstruction.

YUV 4:2:0 subsamples chroma by a factor of two in both horizontal and vertical dimensions, reducing total data to half of the full-resolution YUV 4:4:4 format.

If the input volume falls below the echo canceller’s detection threshold, the device can’t identify and suppress return audio, leading to echoes or squealing.

An audio loop, where output is fed back into the input, directly causes echo and feedback noise.

Placing the microphone too close to the speaker allows direct pickup of its output, resulting in echo and potential high-pitched feedback.

The mswt-media config_info command displays static media configuration parameters; querying actual media-exchange status requires the mswt-media exchange_info command.

Huawei’s SMC supports cascading up to four conference levels for multi-level conferencing, ensuring efficient management and control across up to four tiers.

A SIP response start line is a Status-Line containing the SIP version, status code, and reason phrase - not the method and Request-URI.

In a small- and medium-sized deployment with SMC and SC co-deployed on the same server, a single device supports up to 1,000 concurrent calls.

In SFU+IAU mode, the IAU’s re-encoded (decoded and encoded) streams are identified by the MpAdaptStrmNo value under Site(18). In the output, MpAdaptStrmNo[2710124429803] is the stream number carrying all three re-encoded video channels.

In a hybrid multistream conference, the MCU’s built-in media resources run in dual-mode (AVC+SVC) intelligent adaptation by default, and when SVC and AVC participants view each other, the system automatically delivers the same continuous-presence layout and experience as in an AVC (universal transcoding) conference.