Recorded Voicemails have incredible amount of echo

Hello,

One of our users asked me why it sounds like two speakers are playing back her voicemail.  She played it for me, but it is only coming out of the GoTo app.

There is a very loud slightly delayed repeat of the same recorded voicemail message. 

Almost sounds like the recording was played back once, then a split second later it is played again while original message is still playing.

Very disconcerting.

Any ideas?