a After setting up and configuring two in house PBX systems myself over the last 8 years, it was indeed a pleasure to receive an already set up and configured phone from David, plug it in and it worked out of the box. David worked with me over the next several days to configure 5 different businesses, 10 phones, all in three different buildings separated by 20+ miles and guess what? They all worked perfectly and are by far the best system I've worked with. Expert advice, stellar customer service, quality phone options and a cloud based interface, accessible from any computer with an internet connection. All my businesses now sound like we are part of a huge organization, hell bent on customer service!!