As our old phone showed signs of wear, it was time to look for a new device. Since the phone is in a small office a 1 person company, certain requirements had to be considered. (ISDN, phone answering machine addict) but nothing exceptional. It quickly became the Gigaset DX600A the focus, but the mixed reviews but shrank from. After a week of suffering was too great, and my wife called for replacement, so read and interpreted all the reviews and it turned out that a certain technical knowledge is beneficial. The delivery of Amazon was used reliably and two days later the phone was connected. It irritates a bit when a phone is connected to the network, but to utilize the functionality that's just necessary. Subsequently, the software has been recorded on the PC of my wife, without any problems on Windows XP, there were no difficulties with the integration of the phone to the network and after 10 min. the contacts and the calendar were synchronized, configure the phone and set up the AB. It is very helpful when thinking about the display direct access to an Internet directory assistance has (Klicktel) or (reverse search on Klicktel) appear when calling a foreign number after the first ring of the name of the caller. The technical problems that have been partially mentioned in the reviews have not yet occurred to us. I think this was also due to an older firmware version. Finally, it must still be said, we have the phone now for 3 months and can only wholeheartedly recommend it continue. The manual I have not touched. Functions taken at our old phone even after 6 years could not do without instruction (switch to Note text wg. Holiday), can be done intuitively on the DX600A and are done in a few seconds.