Great phone, do not know what there is to criticize because

I have dared and me, in spite of the largely poor recessions on this page, the DX 600A ordered and can not understand the bad recessions over this phone. I use the phone in my company with an attached fax and 4 logged-Siemens phones also older design (Gigaset 3000T). The reception is fine on the whole premises without repeaters. No crack or even disconnections, although is transmitted partly by 3 reinforced concrete floors in the building.
I also do not know what there is to criticize the quality of the device itself, except possibly the listener, which I easily feel personally than anything, but that's a matter of taste. Everything is meticulously crafted, no yappenden edges or protrusions, no columns or the like. The material is indeed plastic but with a very pleasant feel. The device itself has a valent weight, so it is not taken when making calls using the handset all over the table when you move times.
The device is intuitive, with the ISDN Manager. I have looked to this day not a single time in the included instructions.
Impeccable Outlook synchronization without problems and quirks, right on the first try, despite firewall and virus scanner.
Trouble networking via assigned IP.
Fax integration, a breeze.
The AWS is super easy to set up, unfortunately really not visible on the display. But you can get the hot - show button under the display with the AWS and get with one keystroke the required information about it. Works fine and I think that a key press is also reasonable, before I left the office and I imagine the conversation on my cell phone.
The names of the participants are also displayed for incoming calls !!!
Whether a line is busy, it does not appear on the screen, that's probably true. But what do I need it? At 6 allocated MSN which in my opinion is an unnecessary function. If you want to flog myself, but you can set the one occupied MSN is not redirected in a further access to another MSN.
The tones can be assigned individual numbers !!! Possibly consider the Gigaset compatibility lists.
..... Only to some of the negative comments here something to refute.
I find the phone and the new plant as an enrichment and facilitate our office - everyday. Very nice, and also the Gigaset never been so comprehensive and clear, the call lists as well as the answering machine functions that can be called exactly as detailed on the logged-phones all, always assuming compatibility.
Perhaps more conclusive. I get no money from Siemens and also do not work for this company, but use now for almost 20 years equipment from Siemens, formerly Telekom - sine rule and thereafter always Gigaset and thought simply that I can not be left unchallenged as this phone is panned here. Before I buy something, I got used only once a long time to search the Internet, and only then to make the corresponding purchase. However, I noticed that often things are done badly which does not deserve. Be it possibly because you really had the misfortune to catch a "Monday device", because you're not in a position to operate the device or because you just generally, the German property to do anything bad. Of course, the manufacturer has to put a product on the market that complies with the general requirements. The case the wishes of Lischen Müller who had wished that can cook the phone also hot water eventually fall by the wayside, can happen. I also think that the general requirements for a telephone system through small companies were considered sufficiently well. Furthermore, the system has in me already automatically updated with a newer firmware, further, with new functions are determined to follow and eventually the water is boiling since even involved.