Which Cisco Unified Communications Manager feature is to determine the maximum bit rate for a call between two video-endpoints?

Refer to the exhibit. Cisco Unified Border Element is attempting to establish a call with Subscriber
1, but the call fails. Cisco Unified Border Element then retries the same call with Subscriber 2, and the call proceeds normally. Which action resolves the issue?

A collaboration engineer must configure Cisco Unified Border Element to support up to five concurrent outbound calls across an Ethernet Link with a bandwidth of 160 kb to the Internet Telephony service provider.
Which set of commands allows the engineer to complete the task without compromising voice quality?
A)

B)

C)

D)

Multiple router patterns match a number. How does Cisco Unified Communications Manager determine which pattern to use?

What is a QoS requirement for VoIP calls?