Symptom
Intermittently when the user answers an incoming call, the user will hear a loud noise for a second or two. When the issue occurs there are usually power alarms generated by the voice port.
Dec 3 21:06:32.575: Receive power alarm on voice port 0/0/1, ON
Dec 3 21:06:33.587: Receive power alarm on voice port 0/0/1, OFF
