I'm curious if other people have had problems upgrading their 1000s to 1000e. I have had two sites upgraded in the last six months and both of them went horribly wrong. I used two different vendors and had the same experience with both. I couldn't call from set to set, inbound calls would ring and flash and you couldn't pick them up. I had to revert back on one site to 4.0 because the problems were so severe.