A user reports transfer failure from an IP phone for calls received from a PSTN to another PSTN number.
What is a reason for these failures?

Refer to the exhibit. When making a call to a MRA client, what are the combinations of protocol on each of the different sections A-B-C?

An administrator is trying to change the default LINECODE for a voice ISDN T1 PRI. Which command makes this change?

Refer to the exhibit.

Calls to Cisco Unity Connection are failing across Cisco Unified Border Element when callers try to select a menu prompt. Why is this happening and how is it fixed?

Refer to the exhibit.

Refer to the exhibit. An administrator must fix the SRV records to ensure that server1. sample.com is always contacted first from the three servers. Which solution should the engineer apply to resolve this issue?