Each night a fax machine is sending fax to our general VM box. When playing back message, you hear the fax for 1 or 2 seconds then message ends. At this point, the Unity prompts become garbled and none of the prompts work, such as 3 to delete message.
I can dial from another phone in a different partition and delete the message. Once that message is deleted, all subsequent (non fax type) voicemail messages can be managed appropriately.
Any clue what this issue is?