Running Unity 3.1.5, CCM 312 only. Users in a branch office connected via full T1, with LLQ. Codec throughout is G.711. Users in branch office only report message volume declines through message till it becomes inaudible. Branch office PSTN connection is four FXO ports in a 2651. AGC settings all look good.
They've complained of numerous issues as well, so I'm having the cabling checked, but want to see else we might look at, maybe span the Unity switch port and capture a message before it hits Unity?
Did using the Set Volume utility work? There are many posts about this issue, but no one says what fixed it, or whether anything fixed it.
The volume on 99.5% of my calls and messages are fine. It is just the small minority that have a problem with volume fade out. I am hesitant to start changing my volume levels when most calls are fine.
If anyone knows how someone actually fixed this I would love to know.
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