Which three configuration options are currently unsupported when configuring the Cisco Unified Border Element for videoconferencing? (Choose three)

Question

Options

• ARSVP synchronization of H.323 calls.
• BMultiple logical channels per call leg.
• CH.323-to-SIP video traffic.
• DFECC support.
• EVideo endpoints with different H.245 versions.
• FDual video/picture-in-picture.
• GDSCP marking for video streams.

• A
  3% (1)
• B
  6% (2)
• C
  71% (24)
• D
  9% (3)
• G
  12% (4)

Explanation

The Cisco Unified Border Element (CUBE) has specific limitations for video conferencing support. H.323-to-SIP video traffic interworking (C) is unsupported because CUBE cannot transcode or interwork video streams across these two protocols. Video endpoints with different H.245 versions (E) are unsupported because H.245 version mismatch between endpoints causes negotiation failures that CUBE cannot resolve. Dual video/picture-in-picture (F) is unsupported as CUBE lacks the capability to handle multiple simultaneous video streams in that layout format. By contrast, RSVP synchronization (A), multiple logical channels (B), FECC support (D), and DSCP marking for video (G) are all supported CUBE video features.

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