I can only state what we are going through right now. I really hope that the new software, or soon to be released software's fix their audio problems. I have had to remove 55.3 at a customer site already (less than a week installed) and have esi fixing the new wesp functions at the other site with a 900, and the sip phones still fall off the system, even though the system thinks they are online. Anyone will tell you anything to get you amp'd up about a product. I do like the fact that you can export programming to a csv, look at it and change it, and then import it back into the system. that may save some time, but I can't figure out how to do it yet.
