Which parameters represent the recommended Layer 3 QoS settings for videoconferencing traffic?

The Acme Roller Skates Company has its corporate HQ in Seattle, with remote sales offices in Denver, Chicago, New York, and Atlanta. The company is in the process of transitioning the H.320 videoconferencing system to an IP videoconferencing system. The company has installed an MCU at the corporate HQ, but the remote offices still have H.320 terminal endpoints. A Cisco IPVC 3526 PRI Videoconferencing Gateway has been installed to allow the remote offices to dial into videoconferences. The telephony provider has given the company one phone number for the PRI, which can route to all the channels on the PRI. Which two methods are best for routing calls from the gateway to the MCU for conferences? (Choose two.)

A customer has a conferencing network that is used by only H.323 endpoints. The customer wants the ability to include SIP endpoints in conferences. What needs to be done to allow SIP and H.323 endpoints in the same conferences?

A customer is interested in deploying Cisco VT Advantage cameras along with H.323 video room systems at the facility. How should MRGs be configured to support IP phones, Cisco VT Advantage cameras, and H.323 video room systems with Cisco IPVC 3511 Multipoint Control Units?

You have a customer that has a legacy H.320 videoconferencing system. The customer recently migrated to a converged network for voice and data, and would now like to include video. New ISDN gateways have been deployed to connect the legacy H.320 systems to the IP network. How should the Cisco CallManager cluster be configured so that the gatekeeper can provide Call Admission Control and resolve E.164 addresses?