for those of you who know, I left a job on the west coast directly relating to the issues of interoperability on this issue.
I personally experienced many "bugs" and issues with the Unity piece "playing well" with the opt.81. not to mention the management there had no clue how or how much it would cost and was hell bent on sh%tcanning the Meridian at all costs.
I had many looong weekends and nights spent working on unforseen "issues" which seemed to pop up out of no where seemingly.
I ran from the IPT world back into the familiar world of Nortel where I am now sitting in NC building out BCM's! lol
I would say to do ALOT of PRE-install engineering and make sure your network is built to handle QOS for voice, and the like.
Good luck!
