I'm looking at moving a Unity Express box and a 3560 switch to a new ip. I was hoping to try this on one or two phones as a test before moving the entire thing, but am not sure if that is "doable". As the system is currently working fine, it seems like it would just be a matter of re-iping the devices and changing the gateway information. However, experience has shown me that things don't always go so smoothly.
Has anyone out there done this type of thing on a production system? If so, what were your steps and how much downtime did you have?
Any tips or advice will be appreciated.