An engineer is configuring a Cisco Unified Border Element to allow the video endpoints to negotiate without the Cisco Unified Border Element interfering in the process.
What should the engineer configure on the Cisco Unified Border Element to support this process?
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A. B. C. D.A.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/cube-codec-basic.htmlIn order to allow video endpoints to negotiate without interference from the Cisco Unified Border Element (CUBE), the engineer should configure "pass-thru content sdp" on the voice service. This configuration tells the CUBE to pass through the SDP (Session Description Protocol) information from the endpoints without modifying it.
SDP is used to negotiate the media parameters between endpoints during a call setup. By default, the CUBE will modify the SDP to match the codecs and other media parameters configured on its own dial peers. This can sometimes cause issues with video negotiation, as some video codecs may not be compatible with the CUBE's default settings.
By configuring "pass-thru content sdp" on the voice service, the CUBE will simply pass the SDP information between the endpoints without modifying it. This allows the endpoints to negotiate their own video codecs and other media parameters without interference from the CUBE.
Option A, "Configure codec transparent on the dial peers," is not the correct answer because this configuration would still involve the CUBE modifying the SDP information.
Option B, "Configure a transcoder for video protocols," is not the correct answer because a transcoder is used to convert media streams from one codec to another, and would not necessarily prevent the CUBE from interfering with the negotiation process.
Option C, "Configure a hardcoded codec on the dial peers," is not the correct answer because hardcoding a codec would limit the endpoints' ability to negotiate and select the most appropriate codec for their particular scenario.