Unfortunately I can't say anything about it, I ordered this Gigaset S850 A GO It just works with it Sorry

The base station of a Gigaset phone is not usually designed to charge rechargeable batteries. Instead, the handset is charged in the charging cradle, which is specially designed for the batteries in the phone. The base station mainly serves as an interface for the telephone connection and not as a charger for batteries.

I own several Gigaset phones. The old ones work excellently. The new ones, on the other hand, usually give up the ghost within 1 to 2 years after the warranty expires. This has already happened to me with 4 of them. The problem is that the battery no longer charges. Of course, I have already put in new batteries. The problem is demonstrably with the Gigaset device. That's why I'm keeping my hands off this brand. - Sorry, I didn't answer your question.

Works wonderfully with the GIGASET S850HX.... I also use it with a bluetooth headset... ;-)

Yes.

The router must be DECT compatible, the connection is wireless only. This model only includes a charging station for the phone. There are other models with a telephone base station; more information at https://www.gigaset.com/fr_fr/cms/telephones-sans-fil.html. You will also find instructions and the "Gigaset QuickSync" software, which makes it very easy to set up a DECT phone. Translated with www.DeepL.com/Translator (free version)

Yes, the Fritzbox is the base and you register the gigaset handset as a Dect phone on it. I also operated it like this for a long time.

No, it's just another handset.

The S850 HX is only a handset. The corresponding product with the same handset and base station is called Gigaset S850 (art. no. 3522673) and is intended for an analogue telephone connection. (Almost all Internet routers have an analogue telephone connection).

ufff, we had been able to block enough numbers anyway. But as a small company, there are not so many numbers to block. (The tax office and the value-added taxes will still come along at some point ;-) ) It was more important to us that a name or designation was displayed for the number. This way, you could often recognise the call centre right away. I tried blocking the numbers on my mobile phone, but the call centres are not stupid and change their numbers regularly. By the way, it's still in operation. We had to change the accu-batteries after more than 4 years. But they are type AAA and therefore cheap to get.

I operate 3 of these devices on 3 different floors with the Swisscom Internetbox 2. Works perfectly

Reset to factory settings. Pin code is 0000 by default. Which base?

The telephone needs a base. This can be in the form of a router with integrated DECT (Swisscom router, Sunrise router or Fritz Box). The Tp-Link MR200 has no DECT functions, so you cannot register the phone with it.

No, the Yealink does not have a Dect base station.

should work ... have upgraded an S850A bundle with an S850 HX and went flawlessly

There must be some misunderstanding in the story. You did NOT register the Gigaset S850HX with the Internet box via WLAN. The S850HX cannot use WLAN (and has no reason to use WLAN). You may have registered the S850HX with the Internet box via DECT/catiq. However, that would make less sense, and it would have nothing to do with your smartphone app. I don't know this app, but I think if it did, the base (S680) would have to be connected to the network (which is the case) and then pass on the contacts to the handset. Whether this is intended in this constellation (base with "non-series" handset) is probably another question.

Yes, the HX model is DECT compatible and should therefore work directly with the Sagemcom modem (according to the manual, no guarantee). I have the S850 A Go model connected to the Sunrise modem and use the HX as a second phone. The S850 A Go has a local answering machine (without remote retrieval) and the possibility to retrieve the network answering machine (i.e. the one from Sunrise) locally (information also from the manual without guarantee, as I work directly with the Sunrise answering machine, which sends me messages by email).

The Gigaset homepage says Micro USB.

You do not have to connect the telephone, but this can be connected via DECT. normally a router has this too and so you can connect and use the phone. How do you access the internet?

Yes. Scope of delivery: Handset Gigaset S850HX Charging cradle Plug-in power supply unit Two AAA batteries (NiMH) Battery cover Belt clip Operating instructions See also data sheet: https://static.digitecgalaxus.ch/Files/5/2/8/0/5/4/8/Datenblatt_S850HX.pdf

Can't say. It works perfectly with a Fritzbox. I never put the Centro Business Router into operation. It's the last piece of junk and I no longer have any control over my own routers, the ones from swisscom can always install new firmware. I replaced it directly with a Fritzbox, although this is a very tedious process at swisscom with dozens of administrative hindrances until it gets up and running.

If you want to do VOIP with UPC with this S850HX, you should have some idea how the VOIP configuration works. UPC does not support this model, in fact none from Gigaset anymore. It works for me thanks to a bottle of wine and some good coaxing. A technician configured the UPC side in such a way that I was able to establish the connection on my side using the necessary configuration. Super device, but be careful. Without a clue, I strongly advise against it.

With the Gigasets you can normally send the numbers from one handset to the other if both handsets are registered on the same base. Some handsets also have a USB port under the battery cover where the data can be sent out with the appropriate software.