Hey. I was wondering if anyone knew how long any particular phone can be left unplugged when trying to use set relocation? For example, in the coming weeks i expect to be powering down a system and unplugging all handsets and relocating quite a bit of stuff. I don't want to plug phones in to their new location untill i am absolutely sure that that is where they should be, so that i do not loose the programming in the phone. So does anyone have an idea how long the phones will store the programming? Thanks in advance.