X-16 : Great phone system and easy to setup. 4 charcoal (black) phone extensions connected and 3 incoming telephone lines. We also connected an analog phone to line 1 before the system. Had questions which were handled by support nicely. Good build quality. Wiring harness was included in the box, to connect the extensions.---A major complaint is how the package was delivered via United Parcel Service.The driver didn't knock and we waited all day the first day it was to arrive.The day after scheduled arrival we waited all day also. Still no knock. We heard a truck pull up out front. The driver walked around the side of the building halfway, then turned around and went back to the truck. I ran out to catch him before he left. As I was running along the side of the building I heard a loud THUMP !The driver had dropped the package on the sidewalk instead of setting it down! He waited there for me. I signed for it. He never knocked on any door of this building.XBlue packed it well, luckily no damage to the product. I don't want UPS to deliver here anymore. I just don't like the way they deliver late. We took delivery after 6:00pm, the day after it was to be here. I disagree with the way the freight was handled. It's a $700 box, at least handle it with some modicum of care. UPS is terrible.The X-16 product is so good I've ordered another one, this time with 8 phones, not just 4. Titanium this time. UPS is late delivering this one too. I've now waited until 4:55pm. Before the close of business but too late to deliver and install it today. The box I got was open, the inner box was sealed. When I told the UPS driver the box was open, he said that once I've accepted it, that's it, nothing can be done or changed. OK. Let's see if you guys that sell and ship this will listen and give us a choice of common carrier, other than UPS. . .---October 2012 update :The business that had the 8 phone titanium colored set installed was a car dealership and they also love the look and solid, quality feel of the new phones, which sit on the desks at an angle so they can be seen at a quick glance. They like that the backlit display is a pleasing blue because it matches their computer equipment which has several blue colored lights on it. The phone is line-powered, which is nice because they don't need to place the phone whithin reach of an elelctrical outlet and plug in one of those short-corded transformer packs to it. Line power is a big plus when they had to deploy phones in the garage bays where they work on the cars, because there really were not any eletrical outlets available. The phones look so much cleaner on their desks too, with only a single thin telephone line coming away from it instead of two lines. The titanium matches their equipment color, The sound quality is excellent. Dialing is easy. Each phone holds it's own speed dial list, so each phone's speed dial list can be customized to the user. They don't even use the 50 speed dials it has. It was unbelievably easy to setup and program each phone's extension number. After programming each one, they changed their minds on how the extensions should be numbered. I thought it would be a hassle to reprogram them. It wasn't hard at all. It's so easy, other manufacturers should take a lesson.They really love the handsfree talkback feature : when another extension intercoms them - an internal call from extension to extension - they don't even have to to take their hands off their keyboard or mouse to answer back the internal calling extension. The technicians in the garage bays don't have to even touch the phone with their greasy hands to answer the manager. Way to go, XBlue ! They love that !One thing worth metioning is that upon calling the XBlue tech support it was found that the system is compatible with the Viking brand paging amplifiers (sold separately).We had to call the customer support for a small problem we had during the setup. It turned out we had selected something wrong in the configuration. They called us back and got it squared away so quickly and were so nice about it, even though it was painfully clear in the manual that we should have made the setting, somehow we missed it. Overall a great support system and the easiest to setup system I've ever seen. Way easier than a Panasonic system, way easier than a Talkswitch (now Fortinet), even easier than an ATT multiline office phone !Congrats XBlue, I'm very pleased. The end users are pleased too and the system worked with their exisiting building wiring, which is single line telephones wired back to a central connection point. No need for them to pay me to lay up new wiring.We had a Comdial 3-line phone system that was beginning to malfunction at my retail shoe store. It was approaching 20-years old so I couldn't complain. At the time I paid about $3K for the PBX controller, six extensions, and installation. Of course it was an analog system as all were at the time. So early in 2013 I literally had to get a new phone system as the Comdia catastrophically failed one day.Things change and it seemed the company I used before wasn't even in business so I got online and looked around. There's lots of systems that use VOIP technology but we use POTS (plain old telephone service)and I did not want expensive rewiring. Plus most of those systems I was looking at cost well over $2K plus I'd have the cost of rewiring two physically separate stores that are about a hundred feet apart (on same block, but not side-by-side). It came down to trying Amazon and the X-16 small office phone system bundle here. At least with Amazon being the seller I felt comfortable if the system wasn't up to my needs I could rest assured they'd authorize a return.Well, I'm glad to say this is an excellent solution. One only needs the skills to remove old equipment and plug the new phones in existing phone lines. The only difference I've noticed is that the phone audio is converted in the X16 controller (really a dedicated compact computer) to digital and sent over existing wires to each phone where it is converted back to analog. This is, of course, better quality audio. I only have one small complaint and it likely won't be one that will effect too many user's situations...That is while the loudest ring tones are robust enough for noisy environments, the intercom calling may not be. One of our extensions in a shoe repair show and when the AC is on, the grinder grinding away, and background music playing the loudest setting for the intercom isn't quite enough to match my old Comdial system. After some initial complaints from my employees, who were naturally acclimated to the louder Comdial, I think we've just gotten use to being a little more observant as well as accepting. I do not think but a select few users will ever find this chink in an otherwise robust and solid phone system that qualifies as a stone bargain with added benefit of super-easy installation requirements. I don't see where anyone needing a small system could find a better one for less. This is it!