Users report that voice mail recordings are not loud enough.
Which of the following is least likely to aid in troubleshooting the problem? (Select the best answer.)

A.
adjusting AGC decibels

B.
disabling AGC

C.
obtaining a sniffer capture at the closest point to Unity Connection

D.
verifying the advertised codec settings

Explanation:
Of the available choices, obtaining a sniffer capture at the closest point to Cisco Unity Connection is least likely
to aid in troubleshooting the problem. However, you might obtain a sniffer capture of an audio stream before
Unity Connection receives it as a step in troubleshooting garbled voice mail recordings.
Disabling Automatic Gain Control (AGC) or adjusting AGC decibels might aid in troubleshooting the problem.
AGC enables Unity Connection to automatically adjust the audio volume of calls. You can adjust or disable
AGC if users report that the audio volume of voice mail recordings is always too loud or always too soft.
Verifying the advertised codec settings might aid in troubleshooting the problem, especially if users are
reporting no sound at all. An IP phone’s codec must match the voice gateway’s codec to enable a user to
successfully place a call. In Unity Connection Administration, you can verify the codec’s settings by examining
the list of codecs in Telephony Integrations> Port Group.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/8x/troubleshooting/
guide/8xcuctsgx/8xcuctsg060.html#wp1052958