MWI issue resolved.

Date set for AA programing and scripting.

The "Hallway" sound turned out to be a difference in sound quality, the handsets we are using, SPA504's have a feature called "Deep Bass" well they were all set to Hi-def. Which made the person on the other end sound like they were running a 1-900 line....lol

So we had the folks that did not like the setting change it to "Standard" and they are happy.

The "Hi-def" setting does take a bit of getting used to, though I like it myself.