Refer to the exhibit.

Refer to the exhibit. Cisco Unified element is attempting to establish a call with Subcribers1, but the call fails. Cisco Unified Border Element then retries the same call with Subcribers2, and the call proceeds normally.
Which action resolves the issue?

Refer to the exhibit. An engineer is integrating Cisco UCM with Cisco Unity Connection via SIP.
Which two boxes should be checked to complete the configuration of the SIP trunk security profile? (Choose two.)

What are two characteristics of jitter in voice and video over IP communications? (Choose two.)

A collaboration engineer troubleshoots issues with a Cisco IP Phone 7800 Series. The IPv4 address of the phone is reachable via ICMP and HTTP and the phone is registered to Cisco UCM. However, the engineer cannot reach the CLI of the phone.
Which two actions in Cisco UCM resolve the issue? (Choose two)

An engineer configures a SIP trunk for MWI between a Cisco UCM cluster and Cisco Unity Connection. The Cisco UCM cluster fails to receive the SIP notify messages. Which two SIP trunk settings resolve this issue? (Choose two.)